Professor Cotler was the Director of the Human Rights program in the Law Faculty at the University of McGill and was a Member of Parliament from 1999 until 2015. During this time he served as Justice Minister from 2003-2006.

After his retirement from public life Mr Cotler founded the Raoul Wallenberg Centre for Human Rights. [CBNS 27 Sep 2016]

In late 2022 the film First to Stand: The Cases and Causes of Irwin Cotler was released. It was written, directed and produced by Irene Lilienheim Angelicco and Abbey Jack Neidik and follows international human rights lawyer Irwin Cotler and his team of young activists at the Raoul Wallenberg Centre as they take on the cases and causes of political prisoners and human rights activists including Raif Badawi and Shaparak Shajarizadeh, battling against the world's most repressive regimes.

Tending the Garden is a biography of Rosemary and Emeric Sala who became Baha'is in Montreal at a time when there were some sixty members in all of Canada. It is told in the Sala's words, using excerpts of letters and papers spanning the years 1926 to 1990. Included is correspondence to and from Shoghi Effendi, Ruhiyyih Khanum, May and Sutherland Maxwell, among many others.