In season three episode "Internal Affairs", Sanchez is ordered to attend anger management classes after beating up his mother's caretaker who had robbed her in order to remain on active duty after his violent tendencies come to light. He was briefly framed for the murder of said caretaker, but was cleared of those charges after which he moved back in with his mother to take care of her himself. However, he brutally beat a serial killer shortly afterwards in "Special Master, Part Two" and is suspended without pay for five months afterwards.