Defendant appeals from the judgment of conviction ' of a violation of section 285 of the Penal Code (incest), contending he was denied a fair trial in that the trial court failed, sua sponte, to give the jury instructions to view the prosecutrix’ testimony with caution.
It will serve no useful purpose to recite in detail the acts defendant perpetrated upon his 19-year-old daughter, Jean. Suffice it to say the evidence in support of defendant’s guilt is substantial, convincing and in important instances corroborated. The facts set forth in respondent’s brief, at pages 3 to 11, are complete and substantially accurate and are incorporated herein by reference.
Defendant’s sole contention is that the trial court did not, on its own motion, give a cautionary instruction which usually reads as follows: “ [A] charge such as that made .against the defendant in this case is one which, generally speaking, is easily made, and, once made, difficult to. disprove. ’ ’
In prosecutions for sexual crimes the court should instruct on its own motion that the charge is easily made and difficult to disprove, and that for this reason the testimony of the prosecuting witness should be examined with caution. (People v. Merriam, 66 Cal.2d 390, 394-395 [58 Cal.Rptr. 1, 426 P.2d 161]; People v. Nye 38 Cal.2d 34, 40 [237 P.2d 1] ; People v. Putnam, 20 Cal.2d 885, 889 [129 P.2d 367]; People v. Sutton, 224 Cal.App.2d 708, 710 [37 Cal.Rptr. 23]; People v. McGhee, 123 Cal.App.2d 542, 543 [266 P.2d 874].) It has been specifically held that it is incumbent upon the court to give the cautionary instruction on its own motion in incest cases. (People v. Sutton, supra, at p. 711.)
The Attorney General concedes that the failure to give the cautionary instruction was error. The issue on this appeal is whether the error in the court failing to give the cautionary instruction, sua sponte, is prejudicial. (See People v. Sutton, supra, 224 Cal.App.2d at p. 711.). The circumstances of each case must detemine whether the failure to give the instruction is prejudicial. (People v. Nye, supra, 38 Cal.2d at p. 40.) As recently stated by the Supreme Court in People v. Merriam, supra, 66 Cal.2d at page 395: “It remains to be determined, *191however, whether in the circumstances of this case the trial court’s erroneous refusal of the cautionary instruction resulted in prejudice to the defendant. It has been said that such refusal does not constitute prejudicial error if ‘the evidence clearly points to the defendant’s guilt or . . . the testimony of the prosecuting witness is amply corroborated, or there are other factors in the ease which show that the defendant has been given a fair trial. ’ (People v. Owsley (1946) 76 Cal.App.2d 166, 169-170 [172 P.2d 561].) ”
Defendant argues that the case was an extremely close one, and thus that the failure to give the instruction was highly prejudicial. He points to the following factors: (1) defendant’s acquittal on one count; (2) Jean’s eight-year history of psychiatric treatment; (3) the heated argument Jean had with her father a day prior to initially reporting the events; (4) her experience as a prior child molestee; (5) her lack of chastity; and (6) the psychological bias and prejudices that she would naturally have against her father because of a sixteen-year absence between her third and nineteenth years during which time she lived in nine foster homes over a period of thirteen years.
On the other hand, there is a much stronger showing that no prejudice occurred to defendant as a result of the trial court’s failure to give the cautionary instruction. First of all. the testimony of the complaining witness was clear, assured, and a straight-forward account of the incidents, free from indications of inconsistency, improbability, or fabrication. (See People v. Merriam, supra, 66 Cal.2d at p. 395.) Furthermore, a vigorous cross-examination failed to throw doubt upon her testimony. (See People v. Sutton, supra, 224 Cal.App.2d at p. 714.) In this respect, it should be noted that cases which have held the failure to give the instruction to be prejudicial usually involved testimony of the complaining witness which was inconsistent or inherently improbable. (See People v. Sutton, supra, 224 Cal.App.2d at p. 712.)
Secondly, this is not a case where the testimony of the complaining witness is uncorroborated.1 To the contrary, the *192evidence corroborating Jean’s testimony is abundant. The testimony of prosecution witnesses, Mrs. Hostetler and Mrs. Leonard, clearly showed defendant’s preoccupation with sex as regards to his daughter and his predisposition to have sexual relations with her in one form or another. Defendant’s statements that the prosecuting witness “knew he could get it up,” that she had too much pubic hair growing inside her, and that it was not against his law to “screw” his own relatives all tend to show that defendant had, in fact, admitted to engaging in sexual relations with his daughter. (See People v. Adinolfi, 106 Cal.App. 261, 264 [289 P. 176].)
There was additional testimony by Mrs. Leonard that she had observed defendant make sexual overtures by fondling his daughter’s breasts and her upper thighs. This, together with semen stains found on the couch where defendant slept with his daughter, lends ever further credence to Jean’s story. (Cf. People v. Nye, supra, 38 Cal.2d at p. 41.) And the evidence was uneontroverted that the defendant had slept on the couch with his daughter on several occasions. (See People v. Smith, 23 Cal.App. 382, 384 [138 P. 107].) There is strong corroborating evidence of the prosecutrix’ story. (Cf. People v. Merriam, supra, 66 Cal.2d at pp. 395-396.)
Finally, the following instruction was given to the jury:
“It is the law that the testimony of an accomplice ought to be viewed with distrust. This does not mean that you may arbitrarily disregard such testimony, but you should give to it the weight to which you find it to be entitled after examining it with care and caution and in the light of all the evidence in the case. ’ ’
Thus, the jury was warned to view Jean’s testimony with caution in view of the fact that she was an accomplice in the crime of incest. Moreover, appropriate instructions were given by the court which cautioned the jury against being influenced by passion or prejudice, and required that it judge the case according to the evidence as presented at trial and the law as expounded by the court. (See People v. Merriam, supra, 66 Cal.2d at p. 396.)
It is not reasonably probable that had the instruction been given the result would have been different.
The judgment of conviction is affirmed.
Friedman, J., concurred.
In People v. McGhee, supra, 123 Cal.App.2d 542, 544, the court states: ‘ ‘ The reasons given for requiring the cautionary instruction in cases involving sex offenses, particularly where the testimony of the complaining witness is uncorroborated . . . are (1) the fact that the only available direct witnesses are ordinarily the complaining witness and the defendant, and hence the charge is easy to make and difficult to disprove; (2) eases involving sex crimes generally arouse passion and prejudice in the minds of decent people, including jurors; (3) the ease with *192which the charge can be made to satisfy spite, vengeance, vindictiveness and other base motives. ’ ’ (Italics added.)
This language was cited with approval in People v. Merriam, supra, 66 Cal.2d at page 394.