Nice take on the theme! The switching perspectives mechanic works quite well.

Very creative idea, I'd love to see the ability to move player's camera with mouse instead of the WASD keys

I like the whole idea it of switching perspectives, almost like it's mind control, and it was executed pretty well. 

Even though the animations and art feel incomplete, it's a pretty fun concept overall.  

I also wanted it to have strafing and mouse functionality.

Also when the cops can clearly see you in your "box stealth mode", they don't do anything which is pretty funny.

Cool concept, cool level designs, cool twist : Nice game !

I would only suggest the ability to go sideways for the prisoner, it is a bit tedious to be sure that you will be in the "shadow from the view of the cops"