We're a volunteer squad but we recently started doing QA/QI reviews on our state forms (aka the run sheet for every call). This ensures that all of us who are crew chiefs are filling out our paperwork in a way that will ensure that it's complete and also CYA in terms of possible future legal issues. So far it actually has helped point out a few things that I myself and others have overlooked, nothing major but little things that could effect our "memory" of the call should any legal situation arise.