Not so much any specific nationality have immunity (except hi so) but its more a lack of police actions and lack of judicial presence and prosecution in general. No action in either if those areas has gone on for generations and is accepted at all levels, except to the victims of the crimes. Doesn't matter if its murder, domestic violence, physical attacks, traffic violations, drugs, gambling you name it. It makes the headlines only if they want to give the impression they are doing something. This story will fade away to never be heard again as the next story comes along.