Insurance checks may be different, they can probably verify those, I am referring to cashiers checks that cant be verified. Anything over 10K has to be reported.
Apparently so because the check cashing place cashed it for My brother when I didn't think they would, and I believe they called It in somehow, but I don't think the bank that I cashed mine at verified, although They knew me, knew the situation and knew It was good. My bank would have attached it to my account though, so that they would not be on the hook for it..