sorry to be the bearer of bad news, but please read here;
If you have committed or been convicted of a criminal offence, you may not be allowed to enter Canada.
Criminal offences include both minor and serious offences, such as theft, assault, manslaughter, dangerous driving and driving while under the influence of drugs or alcohol. For a complete list of criminal offences in Canada, consult the Canadian Criminal Code.
If you were convicted of a crime when you were under the age of 18, you can probably still enter Canada. See the Related Links at the bottom of this page for more information about admissibility.
http://www.cic.gc.ca/ENGLISH/visit/apply-who.asphttp://www.cic.gc.ca/ENGLISH/visit/conviction.asp