A member of a group of demolition specialists who have acting in Grozny has been detained in the Chechen capital, reported the provisional press-centre of the Russian Interior Ministry in Khankala on Friday. It turned out during the preliminary investigation that the gunman had been trained in Khattab's camp and was involved in demolition activities since the beginning of the current year. His participation in the blasts of cars of federal forces in January-March in the area of the settlement of Chernorechye has already been proved. On August 29 the criminal planted a powerful self-made explosive device on a railway crossing in the Zavodskoi district of Grozny. Two policemen were wounded in the explosion. Steps are being taken now to render the remaining two members of the subversive group harmless, said the provisional press-centre of the Russian Interior Ministry.