Are you able to take picture of a policeman's picture and bio or whatever and send it to a family member who cannot travel there?

Yes

Yes, photography is allowed.

Yes, the person who checked us in did not restrict photography. I cannot remember if flash was ok or not, but displays are all well lit.

Take all the pictures you want. No restrictions.

Well I guess I just don't really understand the question. simply put they actually encourage pictures inside the museum, so if that helps you any way that's good. if you have any more details give another question back to me.

Yes, I think you can