Sergeant Cage arrived at the scene 20 minutes later. Cage opened the trunk to take out the detection kit and pulled out a pair of gloves from his pocket, walking into the room while listening to Jimmy explain the process.
The first things Cage checked were the doors and windows for signs of forced entry, then he observed the surrounding area for footprints. It was clear that Jimmy had entered once and no one else had entered the house afterward, so the footprints were very important. The door was kicked open by Jimmy, showing two footprints matching Jimmy's shoes, which did not need to be recorded.
At the doorway, Cage found half a shoeprint that only included the sole part and was very faint, clearly the visitor had cleaned their shoes outside, leaving only a slight dust trace. He placed a ruler beside it to take a photograph, then circled it with a marker.