One of my setups has just that, It guards a Governmental fuel Island, You would think that law enforcement and departments would not need them BUT they have solved billing issues and we caught by chance a violent assault of a women and a baby trying to run away from the baby's father.
I have two cameras close together for the same reasons. I have two others that are a little further apart. The reason these two being further apart is to get a better camera angle on the license plates.