He also became the head of the Department of Criminology and Criminal Policy at the IPSiR, he was the dean of the Faculty of Applied Social Sciences and Resocialisation of the University of Warsaw.

As a parliamentary expert, he cooperated on the Act on the Institute of National Remembrance, and later advised the IPN president Leon Kieres and the coordinator for special services Janusz Pałubicki [3].

In 1998, he was a candidate for the function of a general inspector of personal data protection, the 3rd term Sejm was not elected to this position [3].

In 2005, he was candidate, on the recommendation of Civic Platform, to the position of the ombudsman in connection with the expiration of the term of office of Andrzej Zoll.

Before becoming a judge, Rzepliński spent a considerable portion of his legal career as a scholar, professor ordinarius at University of Warsaw and dean of Faculty of Applied Social Sciences and Resocialization.