One of the closest accomplices of Chechen separatist warlord Shamil Basayev was detained in the Oktyabr district of the Chechen capital on Monday, a source at the headquarters of the federal forces in the North Caucasus told Tass on Tuesday. He said the detained bandit had engineered crimes against residents of the republic. Upon arrest he expressed readiness to cooperate with the authorities and told the investigators about a cache hidden near the village of Assinovskaya in the republic's Sunzha district. "The operatives have removed from the cache a grenade launcher, cartridges and other ammunition," the source said.A mixed group comprising Chechen and Dagestani policemen detained another gunman in the Dagestan city of Khasavyurt. Law enforcers have information that the detainee took part in the attack on the police security post Gerzel in early February. One policeman was killed and three others were wounded in the assault. Operatives found two mortar shells and a CD with extremist recordings in the man's house.