Should I have the police do a welfare check on my 17 year old son? I caught him smoking pot in his room on Mon

I notified the police. I found in his room, while the officer was there, a lot of paraphernalia which the officer took. He didn't arrest my son, he said if my son had acted like a punk ( my son is very manipulative and can be reasonable when it suits his purpose) and if he had found more than just seeds he would have. My son swallowed what he had. I tooks his cell phone, his door off his room, his cable, etc. He walked out and said he hoped I enjoyed the last 17 years (a bluff). I filed a report that he left on his own and I didn't make him. I will not allow him to come home until he agrees to a behavior contract. He bullies me, lies, breaks things, cries, when he doesn't get his way. My daughter and I are afraid of him. Either on Tue or Wed night he tried to break into the house. I found the window gl on the ground Thur. Luckily I know him and even which window he would use and I had it blocked good. I am still concerned about his welfare. I do not know what to do with him.