The FSB claim that Yu is an employee of the security Service of Ukraine was in Crimea on a mission to create a diversion near the highway Sudak — the New world.

In the Crimea, according to the secret service, Lemeshko was going to cut power lines, to set fire in the forest and to provoke the collapse of the rocks near the road. During the arrest they found two trotyl draughts, a grenade, tanks with combustible mixture, a saw and a camera.

The court arrested Lemeshko until October 13 article about the illegal manufacture of explosives. Information about case under article "Diversion" in the trial transcript is missing.

According to the FSB, Lemeshko participated in the fighting in Eastern Ukraine on the side of the Ukrainian army and was chief scout in one of the units.