Most non-Muslims know that Muslims can't eat pork but very few people understand that halal is more than pork-free and alcohol-free. With the exception of seafood, any animal that is not slaughtered in the name of Allah is not halal. Chickens, cows, lambs, or turkeys can be non-halal when they are not slaughtered according to the Islamic guidelines. The Islamic guidelines require animals to be slaughtered by making incisions at the front of their throats using very sharp knives. The incisions should be deep and cut into the carotid artery, wind pipe and jugular veins to release all the blood from the body. The meat can only be consumed/processed after all the blood is drained from the body. When slaughtering an animal, the head of the animal has to be aligned to face the Qiblah and the butcher should utter a prayer "in the name of Allah"

With the growing demand of halal meat worldwide, more butchers are training to obtain halal certificates. Halal restaurants should obtain their meat supplies only from certified Halal butcheries.
you can search at http://halalvancity.ca/halal-butchers-vancouver/