London police experimented with putting officers on ... roller skates.
Now, anyone who's ever tried rollerskating will tell you that they're best suited to flat surfaces. Paths, roads, roller-disco dance floors, etc. So, if persued by rollercop, all one must do is make one's escape over some grass.
Now, if only these rollercops were deployed in some place where there was lots of grass.
Like a park.
Okay, back to the drawing board. Maybe we could mount them on Segways, like cops here in Lexington are.
Or maybe, like, bicycles or something. Horses maybe.
What's that old saying about things not being broke and not fixing them?