We flew out on Westjet yesterday afternoon and while we in the waiting area two police officers arrived. As soon as the flight landed the officers headed out to the aircraft. While flying back we asked the head flight attendant what had transpired? Apparently a little after takoff a group became loud. As the flight continued the group got louder and was being abusive to other passengers and the crew. Eventually they started smoking on the aircraft. They were stopped and when the aircraft landed they were escorted off the aircraft. I don’t know what the consequences will be in the end but one thing for sure, they will not be flying home on Westjet.