The problem is of any interaction cops have with the public, catching a DUI is definitely close to the top for chance of a violent incident.

Especially when we all know full well those speed cameras worked, and couldn't be harmed like a person can.

It's also reasonable that the chance of violence would be even higher than with cops since it's unlikely the ticket giver is armed. People get violent with even parking tickets, so that's going to be a non negligible percentage of interactions.

As much as I hate cops, running traffic is kind of what I want them doing, assuming they're not targetting anyone anyway. They're pretty much worthless at every other aspect of their jobs as far as the public facing ones anyway. They're obviously very good at protecting Capitalists, since that's their actual job.