Micorsoft Access 2003 question

I am relatively new at Access and VBA and am trying to make a database for my local fire department. The part I am currently working on involves creating the run reports which are filled in after responding to a call. I was wanting to set it up such that when they are filling out the report, they can click on, and fill in only topics associated with the current call. For example I have information that is required for every call (addresses, dates, times, personnel) on one form. I want to continuously use that same form to add fire information (if that was the call) but not see car accident or hazmat stuff (since that wasn’t the call). I have tried using the visibility feature with no real luck. Does anyone have any ideas? Thanks in advance!

Todd