I Was Fairly Brazen About It.

Brazen just means arrogant and overconfident about it. My dad found me happily chomping some riggles. He said, where did you get this gum? I didn't buy you any chewing gum. You're not allowed gum. It's tricky to get rid of the evidence. The police will then be able to forensic it. To forensic something means to do some special scientific analysis on it in order to identify things like DNA or fingerprints. If you watch the American drama CSI, that involves forensic evidence. Looking at lots of evidence in a scientific way to forensic something.