the militants studied the site of the terrorist attack in advance, one of them, faridun shamsidin, even photographers. the shooting date is march 7, 2 weeks before the fight. after committing the terrorist attack, the criminals tried to escape by moving by car towards the russian-ukrainian border. it has already been established that the terrorist attack was carefully planned the weapons used by the terrorists were prepared in advance in a hiding place; the criminals intended to cross over. russian-ukrainian border, had corresponding contacts on the ukrainian side. heavy equipment spent the whole night sorting out the rubble of the crocus concert hall, rescuers are working around the clock, the work is carried out using specialized technical equipment, canine units, and of course crews, investigators continue to work at the scene of the tragedy, investigators have yet to find out why... thousands of people, and the main thing is how they managed to get all the way to the hall without hindrance. as part of the investigation , the actions of security forces during the emergency will be as