He previously served as Deputy Minister of the Interior of the Czech Republic from 2021 until 2023, member of the Chamber of Deputies of the Czech Republic from 2017 until 2021, and a representative of Katovice from 2018 until 2022.

[7] Kolářík has served as vice-chairman of Czech Pirate Party parliamentary club since 2018.

[10] In the 2021 Czech parliamentary election, Kolářík was the leader of the candidate coalition of Pirates and Mayors in the South Bohemian Region.

[12] Kolářík was appointed Deputy Minister of the Interior of the Czech Republic under Vít Rakušan on 22 December 2021,[13] but resigned from this position in July 2023 for personal reasons.

[14] The decision was preceded by a fight between two women; Kolářík was supposed to defend his wife Jana, whilst the other woman was supposed to be a ministry employee (assistant), with whom he presumed to have an affair.