Over the past 9 months I have seen strange lights moving around my garden at night. They are infra red, so only picked up by my infra red cameras and can't be seen by the naked eye. They move in different directions, smoothly so therefore can't be reflections due to their linear motion. I checked with my neighbours and they were all sleeping or out of the house at the times of the videos. I checked with a friend who flies the police helicopter and not only do they not use Infra red, they also were not out these nights. I was home alone, have no sources of light apart from the motionless infra red flood light you can see illuminating the garden. I have high fences, so the source had to be from high up to be able to travel across my garden. I live in an area where drones aren't flown and no noise can be heard and a lot of the lights seem to move toward my doors. I have no explanation for what I see.