00:00Police drones are reaching incidents in Durham City within 90 seconds.
00:05In some cases, it's been reported.
00:07Durham police say teams can launch from rooftop sites in under a minute,
00:11giving officers aerial support during nighttime patrols across the city.
00:15The drones use thermal cameras and searchlights to locate people and assess incidents in darkness.
00:22During one patrol, pilots spotted a man near the river who appeared close to falling into the water.
00:27Officers were alerted and helped him to safety.
00:31The aircraft have also supported searches for missing people and responded to reports of antisocial behaviour.
00:39Police say the patrols will continue through the Christmas period.