Wikipedia writes that in total 98 thousand people work in the Ministry of Internal Affairs. The source she cites says that 87,000 of them are the police, and 11,000 are internal troops. In terms of - from 925 to 1042 employees per 100 thousand people.
Former Minister of Internal Affairs Igor Shunevich in 2016, in an interview on the Belarus-1 channel, said that the staff of internal affairs bodies is 405 people per 100,000 people. The same number is given by Eurostat.