if this "child" is big enough to be a physical threat to others then the police should be taking action now, not waiting for the outcomoe of a court case. That said, action would probably take the form of informing the father that HE is legally responsible for a dependent that woudl not be recognized as competent in the eyes of a judge/court who is living and under the care of said parent.

The father, while I sympathize with him and his family fully, needs help - and I know in this culture this type of "behaviour" for lack of a better description, is kept private wherever possible, the father needs to recognize and accept that his son is a danger (and he is a danger if he is indeed breaking and entering) to others and that HE (the father) either has to take steps to control his son or ACCEPT the legal consequences.
Signature line > "You can't fix stupid"