Which side??

Find it interesting, there have been a number of pizza delivery guys robbed & assaulted in the Cincinnati area, so last night on the news they announced that pizzas might be delivered by undercover cops, nothing like giving the BG's a clear warning. Why not deliver in marked patrol cars, & uniform officers??
I'd think if you are going to run an undercover operation, it should stay undercover until completed, but now a days we have to make a public announcement about it, it seems more like they are trying to make the sheep feel safe than catching BG's.