How to use the AUTHORITY-CHECK in ABAP

I am a security guy but am trying to understand how the AUTHORITY-CHECK works. I have read the help on it but it doesn't answer to my understanding. I want a check in a report so that no matter what the user selects the program goes out and checks the authorization in the users master record and only displays what he has access to. I am sure this is basic but I am not a programmer.

Thanks