In 2006, Грошев, who taught in the TUI of the Ministry of Internal Affairs of Russia the subject "Professional ethics of employees of the Ministry of Internal Affairs", conducted a social survey among his students. As his results showed, only three percent of students never gave bribery during their studies at the university, and a third admitted that they entered the TUI of the Ministry of Internal Affairs of Russia for money, paying from 50 to 150 thousand rubles.

After presenting the results of the survey to the head of the institute, Major General of the militia Alexander Chislov, he became the object of official investigation, and subsequently was fired. In addition, sociological research was prohibited in the university.