•Opinion by
Judge Williams, Jr.,Raymond Bossbaick (petitioner) petitions for review of the ¡denial of administrative relief ¡by the Pennsylvania Board ¡of Probation .and Parole (Board) from its ¡order revoking bis parole ¡and recommitting ■him as a technical parole violator.1
On April 17, 1980, the petitioner, while on parole, was arrested by f ederial drug enforcement agents for alleged federal drug law violations. Also, ¡on April 17, 1980, the Board lodged ¡a detainer on him based on his arrest ¡and on his travel ontside of the arela of his parole .supervision. Subsequently, he was indicted on four counts with violations of ¡the ¡Comprehensive Drug Abuse Prevention ¡and Control Act of 1970, 21 TLS.C. §§801-1194. On July 15,1980, Judge Van Abtsdalen of the U.'S. District ¡Court, ruling on .a pre-trial defense motion to ,suppress ¡the ¡evidence ¡against the petitioner, held ¡that the federal government had failed to meet its burdenUnder the ¡rule of Kastigar v. United States, 406 TJ..S. 441 (1972), .and ¡suppressed all ¡of the evidence ¡against the petitioner. Judge Van Abtsdalen found that under Kastigar the federal government could not prove that its ¡evidence against the petitioner was not directly premised on, or indirectly derived from, testimony and interviews which the ¡petitioner had given in 1977. The petitioner testified under a ¡statutory grant ¡of immunity2 before ¡a federal 'grand *346jury and at a federal drug trial. He also giave interviews., under an informal grant 'of immunity, to agents of the Philadelphia office of the federal Drug Enforcement Agency (DEA) concerning his knowledge of nationwide illegal drug activities.
On July 18, 1980, the Board conducted a final parole revocation hearing for .the petitioner ¡at which the sole evidence was the testimony of DEA Agent Miller. Miller’s testimony, ,to which petitioner’s counsel objected, concerned the .same ¡evidence which had been ¡suppressed by Judge Van Aktsdalen. The Board, on September 5, 1980, issued its order revoking the petitioner ’¡s parole and recommitting him, based on Agent Miller’s testimony.
The sole question raised by the petitioner is whether the Board acted properly .in revoking his parole and recommitting him on the basis of evidence which had been ¡suppressed by the federal court because .such evidence was directly premised on or indirectly derived from his immunized testimony- or other information which he had supplied to .the DEA.
In order to .answer this question in favor of the petitioner, we would have to hold that a parole revocation proceeding is a “criminal case” because Sec*347tion 6002 is explicitly limited in its application to criminal cases. This we are precluded from doing by the unequivocal declaration of the United States Supreme Court in Morrissey v. Brewer, 408 U.S. 471 (1972), that the revocation of parole is not part of a criminal prosecution .and that the full panoply of rights due a defendant in such a proceeding does not apply to parole revocations.
Parole arises after the end of the criminal prosecution, including imposition of sentence. •Supervision is not .directly by the court but by an administrative agency, which is sometimes an arm of the court and sometimes of the executive. Revocation deprives am individual, not of the absolute liberty to which every citizen is entitled, but only of the conditional liberty properly dependent on observance of special parole restrictions.
Id. at 480. We believe that this distinction is justified by the critical differences 'between criminal trials and parole and probation revocation proceedings.3 At a criminal trial the burden is on the Commonwealth to establish ¡all of the requisite elements of the offense charged beyond a reasonable ¡doubt, but .at a revocation hearing the Commonwealth need only prove a violation of parole or. probation by a preponderance of evidence, even if such evidence is inadmissible at trial. Commonwealth v. Brown, 281 Pa. Superior Ct. 348, 422 A.2d 203 (1980). Also, as our Supreme Court stated in Commonwealth v. Kates, 452 Pa. 102, 114-15, 305 A.2d 701, 708 (1973):
At. . . trial the issue is whether the elements of the offense charged are present .... The focus of a probation violation hearing, even *348.though, prompted by a subsequent arrest, is whether the conduct of the probationer indicates that the probationer indicates that the probation has proven to be an effective vehicle to accomplish rehabilitation and a sufficient deterrent against future antisocial conduct.
Therefore, we must hold that the Board did not err in basing its order revoking the petitioner’s parole and recommitting him on evidence which had been .suppressed for the purposes of la federal criminal trial. Accordingly, the .order of the Board must be affirmed.
Order
And Now, this ,17 th day of February, 1984, the -order .of .the Pennsylvania Board of Probation and Parole in the above-captioned matter is affirmed.
This case has a long and. complex procedural history which is not necessary ¡to detail here; however, it is important to note that •the petitioner presmtly is mot confined pending the final disposition of his petition for review under a supersedeas granted toy 'this Court on December 1, 1980.
The petitioner was granted immunity under the provisions of 18 U.S.C. §6002 which provides as follows:
Whenever ¡a witness refuses, on the basis of his privilege against s’eU-infcrimimation, to testify or provide other information in a proceeding ¡before or ¡amcUlary to—
*346(1) a court or grand jury of the United States,
(2) .an agency .of the United States, oar
(3) either House of Congress, a joint committee of the , two Houses, or a committee or. a subcommittee of either House.
and the person presiding over the proceeding communicates to the witness an order issued under this paart, the witness may not refuse to comply with the order on the basis ¡of his privilege against self-incrimination; but no testimony or other information compelled under the order (or any information directly or indirectly derived from such testimony or other information) may toe uesd against the witness in any criminal case, except a prosecution for perjury, giving a false státement, or otherwise failing to comply with the order.
The United States Supreme Court equated a probation revocation proceeding with a parole revocation proceeding for the purposes of due process in Gagnon v. Scarpelli, 411 U.S. 778 (1973).