On the night of Feb. 24, their front changed: from anti-corruption to fighting the russian aggressor. Some detectives, having arrived at work at night, took up arms to protect the city from the invader. Not only their physical strength but also professional skills came in handy to act ahead of the enemy and gain success in special operations. Later, they established and ensured an effective exchange of information on the capture and torture of Ukrainian servicemen, the deployment and relocation of enemy troops, on the detection and detention of collaborators. Intelligence provided by NABU detectives repeatedly saved the military from ambushes, as the enemy was attempting to invade Kyiv.