Here in Arizona, yeah the gun laws are almost nonexistent but one of them is that if you are involved in any domestic issue or if your mental health is in question they are supposed to do psych evaluations and take away your right to own firearms, etc. The problem is that they never follow through with these type of investigations.
Last year, my psycho brother had three issues where cops were involved. The first was when he tried to shoot himself with his sks and his lady pushed him out of the way. Cops were called by neighbors and all they did was interview a few people then left. The second issue he tried to kill me by choking me out. At that time he was into tweaking so I had no choice to stab him to get him off my neck. It was me that made the call for an ambulance, then I was arrested. Neither me or him were asked about any firearms in my house, then when I was bonded out of the county where they say you can't have any weapons all they did was take my word for it. The third thing he did was beat the shit out of his pregnant girlfriend, got a slap on the wrist for that one too. He continues to buy guns legally, with background check and everything. Oh yeah, areolas bro!