Section 151 of the Criminal Code of Canada makes it a crime to touch, for a sexual purpose, any person under the age of 16 years.Section 153 then goes on to prohibit the sexual touching of a person under 18 by a person in three circumstances: if he or she is in a "position of trust or authority" towards the youth, if the youth is in a "relationship of dependency" with him or her, or if the relationship is "exploitative".(2) A male person is not guilty of an offence under subsection (1) – (a) if he honestly believed that the female person was sixteen years of age or more; or (b) if the male person is not more than three years older than the female person and the court is of the opinion that the evidence discloses that as between the male person and the female person, the male person is not wholly or substantially to blame. (1) Where a female adult has sexual intercourse with a male person who is not her husband and who is under the age of sixteen years, she is guilty of an offence, whether or not the male person consented to the intercourse, and is liable on conviction to imprisonment for seven years.A female adult is not guilty of an offence under subsection (1) – (a) if she honestly believed that the male person was sixteen years of age or more; or (b) if the female adult is not more than three years older than the male person and the court is of the opinion that evidence discloses that as between the female adult and the male person, the female adult is not wholly or substantially to blame. It is determined in Part 14 of the Criminal Code - SEXUAL OFFENCES -Sexual Offences Against Minors - by Article 143.There exist two close-in-age exemptions, depending on the age of the younger partner.
Sexual relations which occur between adults and teenagers under 18 are left in a legal gray area: laws against corruption of minors as well as estupro laws can be applied to such acts, at the discretion of the prosecution.
Section 159 of the Criminal Code criminalizes anal intercourse, but provides exceptions for a husband and wife, and any two persons 18 years of age or older.
These exceptions do not apply if a third person is present, or if the anal intercourse takes place anywhere but in private.
Typically, Mexican states have a "primary" age of consent (which may be as low as 12), and sexual conduct with persons below that age is always illegal.
The age of consent is the age at or above which a person is considered to have the legal capacity to consent to sexual activity.