Im speaking anecdotally, but as a law abiding citizen, none of my interactions with NSW police have been a positive experience. I would imagine individuals from other social/cultural backgrounds experience far worse treatment.
IMO NSW police either needs a massive cultural shift (unlikely) or needs to be rebuilt from scratch.
A reminder to keep conversations civil and respectful. Everyone has a right to express their opinion and everyone has the right to disagree with it. The right no-one has is to bring the conversation down to name calling and humiliation