I was watching a video by RealWorldPolice about a high school student who was arrested for carrying a loaded gun into his school in Seattle, WA. Footage of the entire search, detainment, and arrest of the student can be found here.
At one point in the video, a police officer is interrogating the student about the contents of his wallet, which apparently contained somebody else's ID and credit card; the officer claimed that this was illegal (starts at 13:48):
Cop: ... And who is "Caleb Wartz?"
Student: [Indicating to an ID the officer is holding] ... That's Caleb's ID ... he goes here.
C: I got that. Why is it in your wallet?
S: Because that's my friend Caleb?
C: Why do you have his ID?
S: Because he left it at the gym, and I picked it up, and I was supposed to give it to him...
C: OK, why do you have someone else's credit card?
S: That, I don't know... That... I had a new wallet, picked it up from my house, it's always been in there, never used it...
C: You realize it's a crime just to possess someone else's credit card?
Is there any validity to the officer's claim that merely possessing someone else's credit card is illegal in and of itself, federal or state?