Legal Question in Criminal Law in Canada

According to the Section 271 of the Criminal Code of Canada, Everyone who commits a sexual assault is guilty of; (a) an indictable offence and is liable to imprisonment for a term of not more than 10 years or, if the complainant is under the age of 16 years, to imprisonment for a term of not more than 14 years and to a minimum punishment of imprisonment for a term of one year; or (b) an offence punishable on summary conviction and is liable to imprisonment for a term of not more than 18 months or, if the complainant is under the age of 16 years, to imprisonment for a term of not more than two years less a day and to a minimum punishment of imprisonment for a term of six months.

If someone is not a citizen of Canada but a permanent resident, they could lose permanent resident status and be deported if convicted of crime where (a) the maximum sentence is 10 or more years in prison, or (b) the actual sentence is more than six months in prison.

Not sure what you mean by "what are the charges", but if you are asking for the penalty I hope this answers your question.

The most important first step for this person to take is to contact a lawyer with experience in both criminal and immigration laws.