Amendment to the Act on the Institute of National Remembrance
The Amendment to the Act on the Institute of National Remembrance of 2018 is a partly repealed Polish law that criminalized public speech attributing responsibility for the Holocaust to Poland or the Polish nation; the criminal provisions were removed again later that year, after international protests. Article 2a, addressing crimes against "Polish citizens" by "Ukrainian nationalists", also caused controversy.
Source: Wikipedia — Amendment to the Act on the Institute of National Remembrance (CC BY-SA 4.0)