Trouble - the FAA asks for LEO assistance. It means that they are in way over their head or their collective head is closer to ground level than first suspected. http://www.faa.gov/uas/law_enforcement/ Here's the headline: (If you are a licensed pilot, you may recall the last time the FAA and LLEO conspired with Homeland Security and dozens of pilots on purely interstate flights were illegally stopped Gestapo-style with guns drawn, dogs on the leash, detained and searched "with prejudice" solely because the flights began in Arizona or California without a Flight Plan [Note, no Flight Plan is required for a VFR flight].) Here's some of the more disturbing lines in the FAA announcement and attached PDF file: This implies that an unregistered aircraft is suspect. Arrests are what LEO do first. 'Collect Evidence' will almost always mean confiscation of your aircraft.