I frequently fly my drone at night when police helicopters are often most active. I live in the City limits of Naples, Florida. They are very responsive and aggressive to burglary, trespassing and other complaints. They even respond to drone operators for some reason. Even those flying legally. There is an article on this forum, where the police are quoted as saying, ""We (police heli pilots) have to be vigilant in our scanning during flying and we have to take evasive action when we can," Lt. Harris said. "If you see a police helicopter or any aircraft that’s at a lower altitude, land the drone." LANDING A DRONE IS EASIER SAID THAN DONE. This Lt Harris is apparently clueless regarding drone operations. If a drone and operator are too far away from each other, the drone can't land safely. The signal will likely cut out when the drone goes below the tree line. This will cause the drone to perform a Return Home Maneuver. Simply landing your drone, may result in it's loss, an accident, or crash. Drone operators also have the problem of trying to determine a police helicopters path. They are constantly circling and turning which often appears random. All i can think of doing, is lower my drone to the edge of it's signal limits and fly in the opposite direction away from the helicopter as well as flying in a direction toward my location. Then there is the problem, when a police helicopter decides to follow your drone. Why they sometimes do this, when a drone operator is flying legally, is beyond me. They have done it to me. I just kept flying away from them. They thought I was evading them. That was hardly the case. I was following the law to avoid manned aircraft, but they just kept getting closer. Who is playing chicken then. I couldn't land because, I would have landed in a swamp, a private residence (trespass) or in the middle of a street. Plus, the drone would likely lose it's signal with the controller. Risks I won't take. Anyway, nothing came of my encounters with police helicopters. I just fly as low I can, fly away from what I think is their flight path and fly in a direction toward my home point, slowly reducing my altitude to the lowest level i can, avoiding trees, house roofs and telephone wires. That's about 80 ft. I can only hope a police helicopter won't fly that low.