The game crashed when I tried to play the web version.
I tried the windows version and the game is a bit broken because of the controls. I say the controls are broken because you can avoid the police by getting stuck in the doors or the walls... Idk if that's intentional, but it felt weird. I think you shouldn't allow those movements and do like in pac-man instead: if a move is not possible, just save it for the next turn when it is possible, and don't let the player run into the walls.
Anyway, I think it's a good concept and the visuals felt cool. The police AI and number of policemen felt just right for me.