This is an appeal from an order finding a 17-year-old juvenile subject to the jurisdiction of the juvenile court pursuant to U.C.A., 1953, § 78-3a-l, for violating a state law, U.C.A., 1953, § 76-5-404, which defines the crime of forcible sexual abuse. In this appeal, the juvenile challenges the sufficiency of evidence in support of the court’s adjudication.1 The disposition of that issue requires us to consider whether the juvenile court’s jurisdiction can be sustained on the basis of a finding that the juvenile committed the lesser included offense of lewdness, U.C.A., 1953, § 76-9-702.
Undisputed testimony received at the hearing established that on July 18,1980, at approximately noon, the complainant, an adult woman dressed in running shorts and a t-shirt, was jogging alone up City Creek Canyon in Salt Lake City. Three motorcycle riders in single file passed her, also going up the canyon. One of the riders turned his cycle and started slowly back down the canyon toward the complainant. As the motorcycle passed her at a distance of less than ten feet, the rider stood up on his cycle and called out: “Do you want to [here giving a crude description of an act of oral sex]?” Complainant did not respond, and kept on running up the canyon. After a short time, the motorcycle again approached her from the rear. As the cycle passed her at a speed of about five to ten miles per hour, the rider reached out and rubbed his hand along her buttocks. The complainant testified that she angrily “cussed” at the rider and said, “You jerk, you better get out of here.” She could see no one else in the canyon at this time.
When the motorcycle went only a short distance up the road and then turned around again, the complainant became nervous and turned around and began jogging back down the canyon. As the rider approached her the third time, he repeated his lewd invitation, and then rode his motorcycle alongside her as she jogged down the canyon. Complainant was finally able to flag down a passing motorist and ask for help. The motorcyclist having departed by this time, the motorist went to the bottom of the canyon and summoned the police. Complainant gave them the motorcycle’s license number, which they traced to the juvenile. Complainant identified the juvenile as the motorcycle rider whose actions she had described. After a hearing, the juvenile court found the juvenile subject to *129its jurisdiction because he had violated the law forbidding forcible sexual abuse.
I.FORCIBLE SEXUAL ABUSE
So far as pertinent to the facts of this case, U.C.A., 1953, § 76-5-404 defines the crime of forcible sexual abuse, a felony of the third degree, as follows:
A person commits forcible sexual abuse if, under circumstances not amounting to rape or sodomy, or attempted rape or sodomy, the actor touches the anus or any part of the genitals of another, or otherwise takes indecent liberties with another, ... with intent to cause substantial emotional or bodily pain to any person or with the intent to arouse or gratify the sexual desire of any person, without the consent of the other.. . . [Emphasis added.]
In State in re J. L. S., Utah, 610 P.2d 1294 (1980), a juvenile had approached a motel maid from the rear while she was cleaning a bathtub, putting his hands on her clothed breasts. Construing the term “indecent liberties” in § 76-5-404, this Court held that the brief touching of clothed breasts did not constitute the felony of forcible sexual abuse. “Indecent liberties” included only “conduct of the same magnitude of gravity” as touching “the anus or genitals of another. . . . ” Id. at 1296. Under that precedent and principle, we hold that the touching involved in this case did not constitute the felony of “taking indecent liberties” as defined in § 76-5-404. If the brief touching of a clothed breast does not constitute that crime, as we held in J. L. S., supra, we are unable to see how the brief touching of a clothed buttocks is any more felonious. Consequently, the jurisdiction of the juvenile court cannot be based upon the juvenile’s commission of the act forbidden in U.C.A., 1953, § 76-5-404.
II.JUVENILE COURT JURISDICTION
That holding does not dispose of this case. This is not a criminal prosecution, where the issue is the appropriateness of the imposition of criminal penalties. The issue in this case is the sufficiency of evidence and the regularity of procedures leading to a judgment that a juvenile is subject to the jurisdiction of the juvenile court. In the exercise of its “equitable powers,” U.C.A., 1953, § 78-3a-44, that court has the authority to impose corrective measures appropriate to the circumstances of the juvenile and the gravity of his or her behavior. U.C.A., 1953, § 78-3a-39. Consistent with equitable principles, the informal and flexible procedures of the juvenile court must be shaped to avoid teaching impressionable youth the destructive lessons that the legal system with which they have come in contact (1) is indifferent toward a juvenile’s commission of criminal acts, on the one hand, or (2) is unconcerned with fair procedures and just results, on the other.
In this case, the evidence shows juvenile behavior that was repulsive, intimidating, and; as will appear, criminal. The juvenile court should not allow such behavior to escape unscathed, or the responsible juvenile and those who observe his encounter with the law will be reinforced in reprehensible conduct and in diminished respect for law and the good order of society.
III.DUE PROCESS AND LESSER INCLUDED OFFENSE
The complaint filed against this juvenile charged an offense — forcible sexual abuse —which, according to this Court’s interpretation of the criminal statute, the juvenile did not commit. On this record, can the juvenile be found subject to the jurisdiction of the juvenile court because he has committed a lesser criminal offense, or would such a finding violate the due process guarantees that are binding on this Court and the juvenile court in such matters?
It is well settled that juvenile court procedures must conform to the fundamental requirements of due process and fair treatment. State in re Lindh, 11 Utah 2d 385, 359 P.2d 1058 (1961); In re Gault, 387 U.S. 1, 87 S.Ct. 1428, 18 L.Ed.2d 527 (1967) (notice, retained or appointed counsel, confrontation, cross-examination, and *130privilege against self-incrimination); Breed v. Jones, 421 U.S. 519, 95 S.Ct. 1779, 44 L.Ed.2d 346 (1975) (double jeopardy); In re Winship, 397 U.S. 358, 90 S.Ct. 1068, 25 L.Ed.2d 368 (1970) (proof beyond a reasonable doubt). (The essential elements of due process are summarized in State in re L. G. W., Utah, 638 P.2d 527 (1981).) Subject to that important qualification, however, it is also well settled that the “informal and flexible” procedures of the juvenile court need not “conform with all of the requirements of a criminal trial .... ” In re Gault, 387 U.S. at 30, 87 S.Ct. at 1445, quoting from Kent v. United States, 383 U.S. 541, 562, 86 S.Ct. 1045, 1057, 6 L.Ed.2d 84 (1966); In re Winship, 397 U.S. at 359, 90 S.Ct. at 1069; State in re Lindh, 11 Utah 2d at 386-87; 359 P.2d at 1059. For example, there is no constitutional right to a trial by jury in the juvenile court, even where the court is adjudicating charges on which an adult would have a right to trial by jury. McKeiver v. Pennsylvania, 403 U.S. 528, 91 S.Ct. 1976, 29 L.Ed.2d 647 (1971).
The only due process requirement that seems to offer any basis for challenging a judgment sustaining the jurisdiction of the juvenile court on a finding that the juvenile has committed a lesser offense that is included in the offense charged in the complaint is the requirement of notice. The United States Supreme Court has defined that requirement to include a writing notifying the child and his parents or guardian “of the specific charge or factual allegations to be considered at the hearing ... . ” In re Gault, 387 U.S. at 33, 87 S.Ct. at 1446. A juvenile given that kind of notice, which was given in the complaint in this case, is aware that he is accused of committing each element of the offense named in the complaint. If proof fails on any particular element, there is no lack of notice or other unfairness in a finding that the juvenile has violated a lesser included offense consisting entirely of some remaining elements of the offense or act charged in the complaint.
Such a finding was entered in State in re Besendorfer, Utah, 568 P.2d 742 (1977). There, the juvenile had been charged with aggravated assault. Finding insufficient evidence of intent to cause serious bodily injury, this Court declined to sustain the adjudication on that charge. However, finding that there was “evidence to sustain a finding of an assault as set forth in § 76-5-102(l)(a), a lesser included offense of aggravated assault,” this Court affirmed the juvenile court’s conclusion that the juvenile was within its jurisdiction. Id. at 745.
This Court has its broadest scope of appellate review in an appeal from the exercise of equity powers. This includes appeals from the juvenile court. State in re K. K. H., Utah, 610 P.2d 849 (1980). In such appeals, the Supreme Court is empowered to review the facts as well as the law, and to modify the remedies as appropriate. Utah Const., Art. VIII, § 9; Utah R.Civ.P. 72(a). That broad scope of review gives this Court the same power the juvenile court has to find a juvenile subject to the jurisdiction of the juvenile court where he has not committed the offense charged in the complaint but has committed a lesser included offense. State in re Besendorfer, supra.2
Our criminal practice provides that a defendant may be convicted of a lesser offense included in the offense charged when “[i]t is established by proof of the same or less than all the facts required to establish the commission of the offense charged . . . . ” U.C.A., 1953, § 76-1 — 402(3)(a). Also, see U.C.A., 1953, § 77-35-21(e). In a recent review of our decisions on this subject, we concluded: “In order to be a ‘lesser included offense,’%he elements of the lesser offense must necessarily and always be included within the elements of the greater offense.” State v. Williams, Utah, 636 P.2d 1092, 1096 (1981).
*131IV. LEWDNESS
According to that standard, one of the three types of acts defined as lewdness, a class B misdemeanor, is a lesser included offense of forcible sexual abuse. U.C.A., 1953, § 76-9-702 provides as follows:
A person is guilty of lewdness if he [1] fornicates, [2] exposes his genitals or private parts, or [3] performs any other act of gross lewdness under circumstances which he should know will likely cause affront or alarm or does any such act in a public place. [Emphasis added.]
At common law, the crime of lewdness consisted of the irregular indulgence of lust or other sexually oriented behavior that is indecent or offensive in a public place. 50 Am.Jur.2d “Lewdness, Indecency and Obscenity” § 1 (1970); 53 C.J.S. “Lewdness” § 1 (1948). As codified in modern statutes, the requirement that the proscribed conduct be observed in a public place has sometimes been omitted or supplemented by some alternative.3 Thus, § 76-9-702 proscribes three types of acts, followed by two alternative requirements, one of which must be met with respect to each type of act. To constitute lewdness under this section, the defendant must have performed one of the three types of acts either (1) “in a public place,” or (2) “under circumstances which he should know will likely cause affront or alarm . . . . ”
Uncertainties about the perimeters of the common-law definition of lewdness have also resulted in some lewdness statutes being held void for vagueness.4 That objection could be leveled against the third type of act proscribed in this statute (“any other act of gross lewdness”), unless we construe that language to put limits to its otherwise vague connotations. Pursuant to our obligation to construe a statute, wherever possible, to avoid constitutional infirmities such as vagueness and over-breadth, In re Nelda Boyer, Utah, 636 P.2d 1085 (1981), we are obliged to seek to construe a criminal statute to give specific content to terms that might otherwise be unconstitutionally vague. Braxton v. Municipal Court, 10 Cal.3d 138, 514 P.2d 697, 109 Cal.Rptr. 897 (1973). Faced with this problem as to the meaning of a California criminal statute, the Supreme Court of that state recently defined “lewd conduct” in terms that limited it to “conduct which involves the touching of the genitals, buttocks or female breast . .. . ” Pryor v. Municipal Court for Los Angeles, 25 Cal.3d 238, 256, 599 P.2d 636, 647,158 Cal.Rptr. 330, 341 (1979). We think the court should also have specified a touching of the anus, but with that addition we follow Pryor v. Municipal Court, supra, and adopt its quoted description as a definition of the term “gross lewdness” in § 76-9-702.5
The type of touching with the intent of causing substantial emotional or bodily pain penalized in the felony of forcible sexual abuse, U.C.A., 1953, § 76-5-404, quoted earlier, will necessarily and always include the misdemeanor of performing “an act of gross lewdness [as defined above] under circumstances which he should know will likely cause affront or alarm.” Consequently, this type of lewdness is a lesser included offense of the felony of forcible sexual abuse. State v. Williams, supra.
The record in this case leaves no reasonable doubt that the juvenile performed “an act of gross lewdness” as defined above, in violation of § 76-9-702. After inviting the complainant to commit an act of oral sex upon him, he forcibly rubbed his hand along her buttocks. The evidence is ample to persuade that he did so “under circumstances which he should [have known would] likely cause affront or *132alarm.” We therefore find on the basis of the record in this case that the juvenile committed the offense of lewdness, U.C.A., 1953, § 76-9-702, and is therefore subject to the jurisdiction of the juvenile court.
As modified by this finding, the juvenile court’s order is affirmed, and this case is remanded to the juvenile court for the exercise of its jurisdiction consistent with this opinion.
DON V. TIBBS, District Judge, concurs.. In another case, this same juvenile has also been found subject to the jurisdiction of the juvenile court for violations of state laws forbidding forcible sexual abuse, theft, and lewdness. U.C.A., 1953, §§ 76-5-404(1), 76-6-404, and 76-9-702(1). State in re L.G.W., Utah, 638 P.2d 527 (1981).
. The district and Supreme courts have a comparable power by statute in criminal cases. U.C.A., 1953, § 76-1 — 402(5).
. E.g., State v. Jones, 2 Conn.Cir. 698, 205 A.2d 507 (1964); State v. Kocher, 112 Mont. 511, 119 P.2d 35 (1941).
. E.g., State v. Kueny, Iowa, 215 N.W.2d 215 (1974); District of Columbia v. Walters, D.C., 319 A.2d 332 (1974); Morgan v. City of Detroit, 389 F.Supp. 922 (E.D.Mich.1975).
.We do not adopt the “public” or “presence” or “purpose” elements in the Pryor court’s definition (not quoted here), since our own statute treats those subjects.