12 Angry Men
I saw this on TV once I think, but I should see it again sometime.

Bad Boys

Basic Instinct

Blue Steel

The Bone Collector
I almost feel like I might have seen this once, but I'm not quite sure.

Dirty Harry

Enemy of the State

A Few Good Men

The French Connection

The Fugitive

Heat

In the Heat of the Night

K-9
I saw this once, and I don't think I was wild about it. But I might want to try it again sometime.

Kiss the Girls

Lethal Weapon

The Naked Gun (Break Room of Geeks)

The Other Guys

The Pink Panther

Point Break

Police Academy 2
I'd need to see the first movie before this, but I don't think it's about actual policework.

Police Story

The Presidio
I saw this on TV once, but I should see it again sometime.

Rush Hour

Sicario

Speed
I saw this once, but I wouldn't mind seeing it again sometime.

Thunderheart