> The edge cases are really interesting as well, like the fake pin on the back of the phone.

"Your honor, I have the real pin memorized because I use it all the time, but since I can never use the duress code, I had to keep it somewhere handy."

Or

"Pickpocketing and phone-snatching is a real problem overseas, I put it there so that criminal would wipe the phone trying to get in, denying them access to things like my bank account."

Heck, those aren't just plausible, they might be a good idea.