So I'm starting a cop campaign - any advice?

[Dr. Beckenstein]

After finally finishing the Ghost Cartel Campaign for Shadowrun, we are starting a new one.

Our next campaign will be about cops in the 6th world - which is something different than Shadowrun. We will use Shadowrun 5, and the rules will be no problem.

So, has anybody run a cop campaign (not necessarily Shadowrun or Cyberpunk) and can give some advice what to do and what to avoid? Unexpected problems that were encountered?

And yes, I know Gurps Mysteries. And Gurps Cops. And Gurps SWAT. And the Cop-Sourcebook for Cyberpunk 2020. Not to mention more than 40 years of mysteries in book, TV and other forms.