In this appeal, we review the grant of a writ of habeas corpus under 28 U.S.C. § 2254 by the United States District Court for the Southern District of Ohio, Western Division. Our jurisdiction is found in 28 U.S.C. § 2253.
Petitioner, Donald Lee Noggle, was found guilty in the Court of Common Pleas of Crawford County, Ohio, of the murder of Lawrence Grauer. The petition raises issues concerning the admissibility of testimony of psychiatric experts over the objection of petitioner. Petitioner called two experts who testified that assuming petitioner committed the act, he was insane at that time. Upon cross-examination, the state was allowed to elicit from these witnesses petitioner’s statements to them concerning his participation in the death of Mr. Grauer. The state was also permitted to call, as its rebuttal witness, a psychiatrist who interviewed petitioner at the behest of petitioner’s counsel but who had not been *1410called as a defense witness. This expert recounted petitioner’s similar statements to him concerning the death of Mr. Grauer and testified that, in his opinion, petitioner was not mentally ill at the 'time of the alleged crime. On appeal the trial court’s rulings on these matters were upheld and the judgment of conviction affirmed.
Noggle’s petition is based on violation of his Fifth Amendment privilege against self-incrimination and his Sixth Amendment right to counsel, as extended to the states by the Fourteenth Amendment. The District Court found no merit in petitioner’s assertion that the medical experts’ testimony revealing his incriminating statements to them violated his Fifth Amendment right against compulsory self-incrimination, or, with respect to those experts he put on the witness stand, his Sixth Amendment right to counsel. Noggle v. Jago, No. C-1-79-209 (S.D.Ohio May 26, 1981).1 We agree. The court granted the writ, and ordered a retrial, solely upon a finding that an attorney-client privilege under the Sixth Amendment prohibited the State from calling as its witness the third medical expert consulted by petitioner. While the District Court’s view that psychiatric experts retained by the defense are shielded by the attorney-client privilege has been adopted in federal criminal proceedings and in the majority of states, we do not agree that the rule articulated by the District Court is constitutionally mandated. Accordingly, we reverse.
I
Petitioner-appellee Noggle was indicted by the September-November 1977 session of the Crawford County (Ohio) Grand Jury on two counts of aggravated murder, with the specification that the offense was committed while the accused was committing or attempting to commit aggravated robbery or aggravated burglary. On February 24, 1978, a jury found him guilty of one count of aggravated murder with the above specification. Noggle was, thereafter, sentenced to a term of life imprisonment, the trial court finding the mitigating factor of “mental deficiency.” Our disposition of the case necessitates outlining the trial proceedings in some detail.
Lawrence Grauer was the victim of an assault on July 21, 1977. He received numerous stab wounds, which caused his death. Noggle, who was at that time 17 years old, and two others were alleged to have committed the offense. Noggle was ordered transferred to the Ohio Youth Commission for examination. As a result of that examination and subsequent hearings, it was determined that Noggle be tried as an adult, whereupon Noggle was indicted. Following his indictment, Noggle entered pleas of not guilty and not guilty by reason of insanity.
The principal witness during the prosecution’s case-in-chief was Alvin Lee Morgan, who testified concerning his own involvement in the crime and implicated Noggle. Morgan related the chronology of events that occurred leading to the killing of Lawrence Grauer. He testified that on the evening of July 21, 1977, he and Donald Noggle and another person, Virgil Thurl-man, had gone to Mr. Grauer’s home (where they had done some yard work that day) in search of money to purchase alcoholic beverages. He testified that Noggle looked in the window of Mr. Grauer’s residence, saw him in front of the television set, and entered the house while the other two waited outside. While Morgan was watching through the window, he saw Noggle hold Mr. Grauer by the throat and swing wildly at him with a bowie knife. Morgan and Thurlman then entered the house, and the three of them turned the victim over and took money from his pockets. Noggle also stabbed Mr. Grauer’s dog. The three then proceeded to a reservoir to get rid of the knife.
In addition to Morgan’s testimony of the incident, the State introduced into evidence *1411a plaster cast of a footprint from the scene, which matched the print from Noggle’s left tennis shoe. Further evidence against Nog-gle was provided by the testimony of Philip Leiithold, who had been undergoing diagnostic testing at the Ohio Youth Commission at the same time as Noggle. He testified that Noggle told him he had killed a man.
Prior to trial, defense counsel had Noggle examined by three medical experts in connection with entering an insanity defense. Upon the advice and instruction of counsel, Noggle refused to cooperate with an independent expert appointed for the benefit of the court. The record provided to this court does not clearly disclose that the State also sought to compel another psychiatric examination specifically for the purpose of proof of sanity by the prosecution. In a recorded bench conference, the prosecution did refer to “the refusal of the defendant to cooperate whatsoever with not only the court’s personnel but also the State.”
During presentation of the defense, Nog-gle offered no evidence to contradict the statements made by Morgan or to disassociate himself from the events leading to the death of Mr. Grauer. The defense witnesses consisted of friends and family who described Noggle’s general character. His father testified Noggle told him he thought he had killed the old man (Grauer).
In addition, the defense used two of the medical experts who had interviewed Nog-gle before trial as witnesses, Doctor Weit-man, a psychologist, and Doctor Vincencio, a psychiatrist. The two doctors reported on the result of their evaluation of Noggle, detailing the family history and his “disas-sociative mental state” that subjected him to blank spells in high-stress situations. Both experts testified that Noggle was insane in response to the defense’s hypothetical question that assumed, for the purpose of the sanity determination, that Noggle had been a participant in the stabbing. The defense did not inquire into any statements Noggle had made to the two doctors concerning the crime.
On cross-examination, and over an objection by defense counsel of unspecified “privilege,” the two doctors narrated what Noggle had related to each of them about his participation in the killing of Mr. Grauer, including his statement that he had stabbed the victim at least once.
On rebuttal, the State called the third expert consulted by the defense, Dr. Res-nick. The defense objection to Dr. Res-nick’s testimony, as precluded by the physician-patient privilege provided under Ohio law, was overruled.2 Dr. Resnick testified that the “defendant’s own words, his description of his actions, his behavior is the most single important information in addition to the background material on which [to] base my conclusion.” He narrated in detail statements made to him by Noggle during the course of his interview, including Noggle’s. statement that Noggle had stabbed the victim. The prosecution brought out during the testimony of this witness that a psychiatrist cannot tell the truth of such statements, Dr. Resnick stating: “There is no certain way that the psychiatrist can tell the veracity of the statements. There are two possibilities, one is the patient is consciously lying or distorting, and the other is that his own memory is impaired by, in this case, drugs or alcohol, so he does not have a clear recollection.” On cross-examination defendant’s counsel had Dr. Resnick repeat that the defendant had told him he had no intention of killing Mr. Grauer, and to restate that there is absolutely no way to tell whether Noggle, or any patient, was telling the truth or lying about the events.
The final State’s witness was a medical expert from the State District V Forensic Center who testified that Noggle refused to participate in the court-ordered examination on advice of . counsel. He testified further that his office formalized the waiver of *1412the physician-patient privilege on a form signed by the person under examination to make the person fully aware that there was a waiver and that use of the report would be at the discretion of the court. Noggle refused to sign the form.
Following his conviction, Noggle pursued a direct appeal to the Ohio Court of Appeals, Third District, assigning as error, in so far as “privilege” is concerned, that permitting Dr. Resnick to testify as to confidential matters violated the physician-patient privilege. [No attorney-client privilege had up to that point been asserted.] The appellate court affirmed petitioner’s conviction, holding that no physician-patient privilege attached to communications between petitioner and Dr. Resnick. As far as the record shows, the court, su a sponte, raised the issue of possible violation of an attorney-client privilege or constitutional right to effective counsel. In rejecting this alternative basis for possible exclusion of Dr. Resnick’s testimony, the court provided the following analysis:
It would appear then that there should be, as an incident to the constitutional guarantee of effective counsel, a correlative ability to obtain psychiatric diagnosis and opinion without rendering the defendant’s statements to the psychiatrist automatically available to the prosecution, and this requires a limited privilege arising from the attorney-client relationship protecting such interviews.
However the privilege should not extend beyond the boundaries necessitated by the guarantees of effective counsel. The ultimate objective of the trial is truth and if the privilege be over extended, the prosecution in turn is unfairly impeded. The defendant may refuse to say a word to the prosecuting experts or to court appointed psychiatrists thus effectively blocking any meaningful opinion as to his mental condition at the time of the offense from these sources. He presents only such psychiatric opinion, obtained by the defense as is favorable to his contention and asserts the privilege as to any others, and at the time of his trial, the burden was on the prosecution to prove beyond a reasonable doubt the sanity of the defendant once that issue had been raised by the defense. The privilege changes from a mode of protection of the defendant’s right to effectively explore all avenues of defense to an affirmative shield concealing pertinent opinion otherwise completely unavailable to the prosecution
* * * * * *
We conclude that as a result of the constitutional guarantee of effective counsel there is a limited privilege for psychiatric experts consulted by the defendant but that when he chooses to produce some but not all of the experts at trial to affirmatively establish a defense of insanity, he waives the privilege as to the other experts he does not choose to call.
State v. Noggle, No. 3-78-2, slip op. at 48-50 (Ohio Ct.App. Oct. 19, 1978).
Petitioner sought leave to appeal further to the Ohio Supreme Court raising the issue that it is a violation of the attorney-client privilege for the court to permit defendant’s psychiatrist to be called as a witness on behalf of the State and to testify concerning damaging admissions made by defendant during pre-trial conversations conducted to advise defense counsel with respect to preparation of his defense.
Leave to appeal was denied for failure to present a substantial constitutional question. State v. Noggle, No. 78-1510 (Ohio Sup.Ct. Feb. 1, 1979). Petitioner has thus exhausted state remedies under Ohio law for the purpose of habeas corpus relief with respect to the issues herein discussed. Collins v. Perini, 594 F.2d 592 (6th Cir.1979); Keener v. Ridenour, 594 F.2d 581 (6th Cir. 1979).
II
In his habeas corpus petition to the District Court petitioner asserted he was in custody of respondent in violation of the Constitution of the United States on two grounds. The first concerns proof of the alleged acts of the crime itself and asserts *1413the privilege against self-incrimination, guaranteed by the Fifth Amendment. Petitioner’s rights were violated, it is argued, when the trial court allowed statements made by petitioner during the three examinations by the doctors concerning his participation in the crime, to be disclosed to the jury by the doctors who conducted the examinations. The District Court rejected this contention.
The second is directed to proof of the issue of his sanity as well as to proof of commission of the alleged offense. Noggle argues that his right to effective assistance of counsel guaranteed by the Sixth Amendment was violated when the State was allowed to call Dr. Resnick, a psychiatrist consulted by the defense, as a rebuttal witness, and to bring out his incriminating statements made to Dr. Resnick. The District Court agreed. The appeal taken for the State is based on this ruling and we will address it first.
Ill
In finding Dr. Resnick’s entire testimony to be a violation of the Sixth Amendment guarantee of right to counsel, the District Court found precedent in United States v. Alvarez, 519 F.2d 1036 (3rd Cir.1975), stating:
The Alvarez court recognized that the attorney client privilege can attach to reports of third parties made at the request of the attorney or the client where the purpose of the report is to put in usable form information obtained from the client, citing United States v. Kovel, 296 F.2d 918 (2d Cir.1961), c.f.; Federal Trade Commission v. TRW, Inc., 628 F.2d 207 (D.C.Cir.1980); United States v. Cote, 456 F.2d 142, 144 (8th Cir.1972); United States v. Judson, 322 F.2d 460 (9th Cir. 1963).
Slip op. at 4.
The rationale stated in Alvarez and found persuasive by the District Court is the following:
We see no distinction between the need of defense counsel for expert assistance in accounting matters and the same need in matters of psychiatry. The effective assistance of counsel with respect to the preparation of an insanity defense demands recognition that a defendant be as free to communicate with a psychiatric expert as with the attorney he is assisting. If the- expert is later used as a witness on behalf of the defendant, obviously the cloak of privilege ends. But when, as here, the defendant does not call the expert[,] the same privilege applies with respect to communications from the defendant as applies to such communications to the attorney himself.
519 F.2d at 1047 (footnote omitted).
From Alvarez, the District Court in the instant case read a broad attorney-client privilege into the Sixth Amendment requirement of effective counsel,3 which attaches to the testimony or report of any psychiatric expert retained by the defense and which is waived only by calling that particular expert as a defense witness. Applying that premise to this case, the District Court held that there was a violation of constitutional rights occasioned simply by allowing Dr. Resnick to testify, regardless of the substance of his testimony.
IV
We agree with the District Court that the calling of Dr. Resnick as a State’s witness raises a difficult question under the Sixth Amendment. However, we do not so readily find in Alvarez the answer to the legal issue raised by the petition. Alvarez was directed to interpretation of a federal statute on a direct federal criminal appeal. While some of the language of the opinion has constitutional overtones, nevertheless, Alvarez was not concerned with defining the scope of constitutional guarantees. Regardless of the merit and appeal in the Third Circuit analysis of the issue before it, we have the more difficult task of discerning minimum constitutional standards in an *1414area in' which few appellate courts have spoken and the Supreme Court has provided little guidance. Contrary to the District Court, we conclude that the guarantee of effective counsel does not insulate from disclosure, on the issue of a defendant’s sanity, the opinion of a medical expert who was retained by the defense as a potential witness.
While the rule adopted by Ohio may not be as protective of the defendant as that in Alvarez and other jurisdictions,4 Ohio does not stand alone in rejecting that an attorney-psychiatric-client privilege is mandated by effective counsel requirements.
In Texas, no attorney-client privilege attaches to communications between a defendant and a psychiatrist who makes an examination with respect to sanity. By law, such experts are designated as “disinterested” and may be subpoenaed by either party to testify on that issue. Granviel v. State, 552 S.W.2d 107 (Tex.Cr.App.1976), cert. denied, 431 U.S. 933, 97 S.Ct. 2642, 53 L.Ed.2d 250 (1977).
In New York, the Court of Appeals has held that the attorney-client privilege does not encompass the disclosures to a psychiatrist whom defense counsel secured in connection with trial preparation. Moreover, a plea of innocence by reason of insanity has been stated to constitute, in New York, a complete and effective waiver by the defendant of any claim of privilege, patient-physician as well as attorney-client, respecting psychiatric evaluations. People v. Ed-ney, 385 N.Y.S.2d 23, 26, 39 N.Y.2d 620, 625, 350 N.E.2d 400, 403 (1976).
Both the Texas and the New York rules, which appear no more favorable to the defendant than the rule applied by Ohio, have weathered an attack in habeas corpus challenges identical to that made here by Noggle. Granviel v. Estelle, 655 F.2d 673 (5th Cir.1981), cert. denied, 455 U.S. 1003, 102 S.Ct. 1636, 71 L.Ed.2d 870 (1982); Edney v. Smith, 425 F.Supp. 1038 (E.D.N.Y.1976), aff’d without opinion, 556 F.2d 556 (2d Cir. 1977). In Edney v. Smith, Judge Weinstein concluded:
We can only speculate that the New York rule results in substantial prejudice to criminal defendants.
The statements by the defendant to this psychiatrist were not admitted to establish the fact of his having committed the murder, but only to establish a basis for the psychiatrist’s evaluation of petitioner’s sanity at the time of the offense. Given this limited use, any possible prejudice may be balanced, within limits not exceeded in this case, by the strong counterbalancing interest of the State in accurate fact-finding by its courts.
In sum, it seems undesirable at this time to canonize the majority rule on the attorney-psychiatrist-elient privilege and freeze it into a constitutional form not amenable to change by rule, statute, or further case-law development. Were we to force the State into the rigid format suggested by the petitioner in this case by deciding that New York must, as a constitutional matter, extend privileged status to these communications, we would cut off further experimentation in this area — not only by this State, but by all state and federal courts and legislatures. We cannot say what the ultimate consensus, if any, will be on these policy issues. But it appears inappropriate and unwise at this stage to block potential branches of evolution.
Courts and legislatures must be given reasonable freedom to develop new approaches to questions of testimonial privilege. This subject is currently in a state of development, with increasing pressures for the creation of entirely new privileges, such as the social worker-client and reporter-source, and the expansion of older privileges predicated upon expanding *1415concepts of privacy. At the same time there is continued counter-pressure from the compelling interest in the ascertainment of truth in the pursuit of just determinations of legal contests. See, e.g., Federal Rules of Evidence, Rules 102, 401-403, 501, 803(24). For us to force one phase of the law of evidence into the Procrustean bed urged by petitioner might be to disserve the arguably desirable development of more flexible rules of privilege.
425 F.Supp. at 1054-55.
In upholding the Texas rule, the habeas court in Granviel v. Estelle, endorsed the foregoing analysis by Judge Weinstein in Edney v. Smith. See also State v. Dodis, 314 N.W.2d 233 (Minn.1982), where the Minnesota Supreme Court reached a similar conclusion with respect to the constitutional issue, also relying upon Edney v. Smith.
We also agree with Judge Weinstein’s analysis and are convinced that no single approach is mandated by the constitutional requirement for effective assistance of counsel, and the concepts of privilege which may be inherent therein.5 In this developing area of the law, the states must be left to experiment and innovate.
Our review of decisions of the various jurisdictions discloses that such experimentation has resulted in widely diverse privilege standards as well as different standards of what constitutes waiver of the privilege and to what issues the waiver applies. Indeed, the jurisdictions vary on whether the courts should or can compel psychiatric examination; what sanctions, if any, may be imposed for failure of a defendant to cooperate; and, most fundamentally, who has the burden of proof of the underlying sanity issue. Moreover, different procedural safeguards are provided, e.g., bifurcation of trial on the issues of commission of the act (in some jurisdictions referred to as a determination of “guilt”) and of the issue of “sanity”; bifurcation of the determination of guilt (including sanity) and sentencing; requirements with respect to the order in which each issue is tried; requirements for different juries in bifurcated proceedings; as well as requirements for the same jury in bifurcated proceedings. The rulings on particular issues are affected by countervailing procedures or holdings. In our view, the constitutional question cannot, thus, be posed merely in terms of the scope of “the attorney-client privilege.” Rather, we must focus on whether the balance drawn by Ohio was so detrimental to the attorney’s effective representation of his client as to be prohibited by the Sixth Amendment.
Ohio recognizes a limited privilege, one that forecloses the use of a defense psychiatrist by the State during presentation of its case-in-chief. This privilege was waived not merely by Noggle’s plea of insanity but by the defense putting medical experts on the stand who testified that he was insane. We cannot say that the Sixth Amendment requires more than the balance struck here by Ohio.6 Thus, there is no *1416entitlement to habeas corpus relief on the basis that a violation of a constitutionally mandated attorney-psychiatrist-client privilege occurred when the state called as its witness a defense-retained psychiatrist.
V
Noggle asserts as alternative bases for his petition that all incriminating statements to psychiatrists revealing his participation in the acts of the crime must be excluded either because of the Fifth Amendment guarantee against self-incrimination7 or because of the Sixth Amendment guarantee of effective counsel.8 As authority, Noggle relies on decisions from a number of jurisdictions holding that incriminating statements made in court-ordered psychiatric examinations may not be used for the purpose of proving the acts of the crime, e.g., Gibson v. Zahradnick, 581 F.2d 75, 76 (4th Cir.), cert. denied, 439 U.S. 996, 99 S.Ct. 597, 58 L.Ed.2d 669 (1978); United States v. Cohen, 530 F.2d 43, 48 (5th Cir.), cert. denied, 429 U.S. 855, 97 S.Ct. 149, 50 L.Ed.2d 130 (1976); United States v. Alvarez, supra. Moreover, in Estelle v. Smith, supra, the United States Supreme Court held that by submitting to a court-ordered examination to determine his competency to stand trial, the defendant was found not to have waived his objection tp testimony by that medical examiner at trial with respect to the penalty to be imposed. The Court stated:
The fact that respondent’s statements were uttered in the context of a psychiatric examination does not automatically
remove them from the reach of the Fifth Amendment.
451 U.S. at 469, 101 S.Ct. at 1876.
Again, a court-ordered examination was involved in that case, but the above tenet, as well as the concepts of knowing-waiver of Fifth Amendment rights discussed therein, cannot wholly be disregarded because we are here considering a voluntary examination.
We do not draw from this precedent, however, a conclusion that the scope of cross-examination of defense-called medical experts is constitutionally proscribed per se with respect to inculpatory statements. The State is entitled to test the validity of an expert’s opinion.9 Nevertheless, contrary to the District Court’s view, we conclude that Fifth Amendment rights are relevant even after a defendant calls his own medical experts to the stand, with respect to the issue of his commission of the acts. Evidence of a defendant’s inculpatory statements during a psychiatric examination cannot be admitted to prove guilt. To hold otherwise would make the privilege against self-incrimination illusory. Moreover, such evidence should not be permitted to affect the jury’s determination on that issue to any greater extent than is inherent in an insanity plea which unavoidably may contain an admission that defendant did the act but under circumstances for which he is not responsible.
A bifurcated trial as in Alvarez, supra, clearly would effectively screen the medical testimony from being given any weight on the issue of guilt. However, a bifurcated trial is not constitutionally mandated. See *1417McGautha v. California, 402 U.S. 183, 91 S.Ct. 1454, 28 L.Ed.2d 711 (1971). Noggle instead relies on the position taken by the court in Gibson v. Zahradnick, supra, that a cautionary instruction must be given to the jury immediately after such testimony is heard. Such an instruction is of debatable effectiveness, not always desired by the defendant, and clearly cannot entirely erase the testimony from the minds of the jurors. It is’ at best a device for balancing interests of the State and the defendant. In any event, while such an instruction may be necessary in some cases, we do not conclude that the failure of the trial judge to give an instruction, sua sponte, immediately following the expert’s testimony was required by the guarantee under the Fifth Amendment against self-incrimination. Whether an instruction must be given is more appropriately tested by standards of due process, that is, the more nebulous test of general fairness of the trial as a whole.
It is apparent from a review of the proceedings detailed above that the State had done its work independently in putting forth, during its case-in-chief, a solid case establishing that Noggle killed Grauer, which was strengthened by at least one defense witness, his father. Not a shred of evidence was introduced by Noggle, or through cross-examination of the State’s witnesses, to contradict the State’s proof. Nor does Noggle point to anything in the record indicating that the State misused the medical experts’ testimony to buttress its case on the issue of commission of the act. We do not see any prejudicial effect from the failure of the judge to instruct the jury immediately following the cross-examination testimony of the defense witnesses.
The Ohio court was not asked to address the above issues.10 During the appeal, Noggle was, at most, attacking only the testimony of Dr. Resnick on constitutional grounds. Given that the testimony by the two defense experts included incriminating statements, the Ohio court found a waiver with respect to the similar statements made to Dr. Resnick. Since the defense experts’ testimony relating to disclosures by Noggle was properly admitted, we do not see any basis on which to overturn the ruling with respect to Dr. Resnick on constitutional grounds.
VI
The decision of the District Court is reversed, and the case is remanded with directions that the writ be quashed and that the order directing the State of Ohio to either retry or free Noggle be vacated.
REVERSED AND REMANDED.
. In the petition filed with the District Court, Arnold R. Jago, then superintendent of the facility where Noggle is confined, was named as respondent. As current superintendent, Marshall has been substituted as respondent-appellant.
. Dr. Resnick, in his testimony on cross-examination, stated that he told Noggle he was seeing him for his defense counsel “to conduct a legal evaluation. There was no illusion of physician-patient relationship.”
. In all criminal prosecutions, the accused shall enjoy the right ... to have the Assistance of Counsel for his defence. U.S. Const.Amend. VI.
. See, e.g., State v. Pratt, 284 Md. 516, 398 A.2d 421 (Ct.App.1979); Pouncy v. State, 353 So.2d 640 (Fla.App.1977); People v. Knippenberg, 66 Ill.2d 276, 6 Ill.Dec. 46, 362 N.E.2d 681 (1977); People v. Hilliker, 29 Mich.App. 543, 185 N.W.2d 831 (1971); State v. Kociolek, 23 N.J. 400, 129 A.2d 417 (1957); San Francisco v. Superior Court, 37 Cal.2d 227, 231 P.2d 26 (1951).
. See Saltzburg, Privileges and Professionals: Lawyers and Psychiatrists, 66 Va.L.Rev. 597, 603-04 n. 14 (1980).
. We also do not see any violation of the Fifth Amendment by providing a witness to the State on the issue of sanity. The adversarial nature of criminal proceedings reflected in the Fifth Amendment requires that the State obtain evidence independently from the defendant. It does not however preclude court ordered psychiatric examination. See Estelle v. Smith, 451 U.S. 454, 465-66, 101 S.Ct. 1866, 1874-1875, 68 L.Ed.2d 359 (1981), and cases cited therein. We discern no significant difference between the compulsion in a court-ordered examination and the subpoena of a psychiatrist who has made an evaluation for the purpose of serving as a possible defense witness. Unlike evidence relating to commission of the alleged acts, evidence of sanity or insanity can only be obtained from the defendant. Cf., Williams v. Florida, 399 U.S. 78, 90 S.Ct. 1893, 26 L.Ed.2d 446 (1970) (identity of alibi witness must be disclosed). See also United States v. Euge, 444 U.S. 707, 100 S.Ct. 874, 63 L.Ed.2d 141 (1980) (handwriting exemplar); United States v. Dionisio, 410 U.S. 1, 93 S.Ct. 764, 35 L.Ed.2d 67 (1973) (voice exemplar); Gilbert v. California, 388 U.S. 263, 87 S.Ct. 1951, 18 L.Ed.2d 1178 (1967) (handwriting exemplar); United States v. Wade, 388 U.S. 218, 87 S.Ct. 1926, 18 L.Ed.2d 1149 (1967) (lineup); Schmerber v. California, 384 U.S. 757, 86 S.Ct. 1826, 16 L.Ed.2d 908 (1966) (blood sample).
. No person . .. shall be compelled in any criminal case to be a witness against himself. U.S. Const, amend. V.
. We perceive the Fifth and Sixth Amendment privileges to be different expressions of the same concept in this context.
. Additionally, in contrast to Fed.R.Evid. 705, Ohio requires an expert witness to disclose the underlying facts on which an opinion is based before giving that opinion:
RULE 705. Disclosure of facts or Data Underlying Expert Opinion
The expert may testify in terms of opinion or inference and give his reasons therefor after disclosure of the underlying facts or data. The disclosure may be in response to a hypothetical question or otherwise. [Emphasis added.]
Thus, it was permissible for the prosecution to have cross-examined the defense-called psychiatrist with respect to inculpatory statements made by the defendant and relied upon by that expert in formulating his opinion on the issue of the defendant’s insanity. Those statements should have been disclosed on direct-examination before eliciting the opinion.
. As indicated, State remedies have, nonetheless, been exhausted, Collins v. Perini, supra; Keener v. Ridenour, supra.