What's the potential positive influence here? Genuinely trying to find one. Is it that a cop can tell the board "oh that's no big deal we assault everyone?" Policing isn't hard to understand, if it were there might be some minimum training standards somewhere.

The positive influence is just that a cop understands police work.

It seems obvious to me that that's important knowledge for a team tasked with regulating police work.

There are plenty of standards. and all cops go through a ~6 month Police Academy before they get the badge.

And if you think you know as much about police work as someone who has done it for decades, I don't think we can get much further in this discussion.

The point is that "understanding police work" is irrelevant when you're building a body of neutral observers