This article comprehend the arguments backing the adoption of a new explanatory resolution of the Plenum of the Supreme Court of Republic of Moldova, concerning the judicial practice for penal cases related to sex offences. Especially, is recommended a new interpretation form of the notions „sex act”, „homosexuality”, „perverse sexual satisfaction”, „coercion” and other notions employed at art.171-175 PC RM. It is illustrated why the victim’s impossibility to defend itself or to advance his or her volition is expressed by it disability to oppose the offender or it incapacity to understand adequately the seriousness of the situation (because of his or her total or partial unconsciousness or his or her precarious physical or psychic being). This article intend’s exact criteria to disclose the consumption point of sex offences. Also, there are layed down important specifications touching the tentative of the offences prevented at art.171 and 172 PC RM.