[2] On 13 January 2023, a constitutional majority of members of Ukraine’s parliament voted to strip Kuzmin of his position as a people’s deputy.

[7] Until his reappearance in parliament, Kuzmin claimed to have lived in hiding in Ukraine aided by "many people, including officials and secret services’ representatives".

[8] On 10 January 2023, Kuzmin was stripped of his Ukrainian citizenship along with Viktor Medvedchuk, Andrii Derkach, and Taras Kozak.

Renat Kuzmin initiated criminal proceedings against former President of Ukraine Leonid Kuchma according to the fact of exceeding authority and official powers that caused grave consequences for the protected by law rights and interests of citizens H.R.

Renat Kuzmin supervised the pre-trial investigation into the criminal case of criminal activity of Serhiy Tkach who committed a number of premeditated killings and attempted murders combined with raping of women, underage and minor girls in 1984–2005, for which 8 persons were illegally convicted as the investigation found out.

Scientific article "Defamation as Means of Illegal Influence on Court and Investigation in Ukraine" was published in the specialized edition - newspaper Law and Business # 11 (1101), March 16–22, 2013 1 June 2014 Ukrainian court decided to arrest Kuzmin for offenses provided for by Part 3 of Article 371 of the Criminal Code of Ukraine.