Evidence at the end and other baffles

So Clive Owen has been living in the bank for a week at the end but he would have left so many traces of himself there from hair and stool samples to other things like simple fingerprints.

Plus the bank cameras are on and will capture him leaving.

Also the bank janitor would easily have detected the room size has shrunk. If you work there for a while you'd easily recognize the change.

Also at the end he gives Jodie Foster the war crimes number and a copy of the recording. Why? She's not intimidated by him nor is she coming after him. What was that for?
Denzel is going to expose Arthur Case as a Nazi and get him arrested and possibly tried and jailed but doubt much would happen there.

Also when they did the mock shooting the camera was capturing the moment clearly. I'm sure the cop camera was still pointed there. They'd surely see the body move etc. Maybe it's understood that the perps moved the pseudo dead body but still you'd get vital evidence like the girl with the big rack.

There were only 2 or 3 women with that size and one of them was clearly the hostage taker so it should have been easy to get her. You can then get more info.

Overall the movie is great. But some things were plot holes like this but honestly the movie was terrific and very enjoyable from the awesome song at the start to the end.

I'd rate this movie 9/10 easily.