Police chiefs of America's largest cities have published the first guide about UAPs, which details chilling encounters and how officers can report such incidents. The 11-page document warned that unidentified flying objects 'pose significant safety risks to law enforcement air support units,' urging teams to be vigilant when in helicopters. The report also highlights stories from officers who claimed to confront UFOs. The organization, called the Major Cities Chiefs Association (MCCA), includes nearly 80 executives from major US cities who work together to advance public safety through a range of initiatives, including community outreach, research and policy development and now, UFO investigations. The report ... includes links to various UAP reporting websites, urging officers to report any bizarre sightings. More interesting, the pages detail first-person stories from police officers who encountered unknown spacecraft while out in the field. An officer patrolling Blairsville, Georgia in November 2023 claimed to have witnessed green lights in the sky. 'I am a police officer and deputy sheriff. While on duty after dark, near the top of my windshield (frame of view) I witnessed movement in the sky (southbound direction of view),' the officer's report stated. 'Upon concentrating my focus, viewing through the low light, I was able to make out a triangle craft, with 3 dim green lights per side (just bright enough to assess size, shape, and movement).'