TY JOUR TI On the issue of improving the effectiveness of training and retraining of employees of departments to ensure the safety of persons subject to state protection in critical situations KW extreme conditions KW extremism KW terrorism KW critical situation KW innovative approach KW professional psychological training KW training methods KW operational thinking JO Legal Science and Practice: Journal of Nizhny Novgorod Academy of the Ministry of Internal Affairs of Russia AU Samolyuk, R.N. AU Ustyuganin, N.N. PY 2021 IS 2021 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia