Chinese speak and write English exceptionally well - most of the time.
Occaisionally they make an error.
Here are some:

Perhaps the proceeds could be spent on spelling lessons.

To their credit, they are trying to cooperate.

I was told the bottom translates as something loke 'Emergency Room, or, 'Duty Room'
I wonder if the top sign means the officers are observing people, or, if the officers are being observed themselves.