I cross into Alberta and B.C. quite frequently and it depends on the custom agent on what they ask. Some are kind of laid back and just ask the routine questions, any alcohol, firearms, purpose of visit and length of stay. About 1 out of 10 times am I ever asked if I have ever been arrested and then they pull you inside and do a back ground cheque. Some of the questions asked are so rediculous, but make sure you swallow your pride and don't give any smarta$$ replies. They can detain you for a long time. Good luck.

Bobby