Inspector Frederick was a man who obviously investigated stuff duh. His full name was Frederick Abberline. And he actually had this massive big Big BIG BIG case. It was to get to Jack the ripper. it was Victorian era baby so ofc stuff is different. Recently he's been talking to....prostitutes. To see if they've had interactions with him. But nothing. And actually you had a lead. And was gonna go into his home to tell him. He actually was in his bath tub eating, drinking a bit, looking at notes and ect.