Can you define exactly what they are allowed to lie about and what they cannot lie about? Are you 100% positive you cover everything?
I'm not being a dick here, because I don't think the courts even have a good grasp of this.
"We think you have kiddie pron on your phone, let me see and prove that you don't or else you'll be arrested for obstruction"
Where is the acceptable lie here? Where did it go over the line (if at all)? This isn't outrage bait, this is the exact scenario found here. A cellphone is the modern "secure in their papers" IMHO. He was a US citizen on US soil, the right apply or we don't have rights at all.
I am a libertarian. The state has accrued too much power. This case just proves it again.