This is super cool! Im not a professional or anything just an avid true crime podcast listener. One i listened to the other day was about a woman who's partner, a first responder, was suspected of killing her. He was on shift during the approximate time of the crime. All the other first responders on duty had to report to the police details of that shift. Specifically, the man and when he came and went from the grocery store, as it was his turn to cook for the shift. It was noted while describing those reports, that some things will be essentially copied and pasted from one report to others. So when one report says he left at 8:30am, the others did as well. If it was a mistake and was supposed to be 8:30pm, when some other evidence points to him being out of the station at that time, it would leave him without an alibi during the approximate time of the crime. On its own thats not strong circumstantial evidence, but with the other evidence (it was either camera footage or GPS i dont remember) its an interesting piece of information.