Black Warrant: Confessions of a Tihar Jailer is an Indian 2019 non-fiction book written by journalist Sunetra Choudhury and the former superintendent of Tihar Jail, Sunil Gupta. It traces some of the infamous criminals who served their time in the jail and were hanged. The book was published by Roli Books on 7 November 2019. The book shares controversial confessions of procedural lapses and corruption leading to a travesty of justice. It provides a step forward in a quest to understand the Indian prison system and provides fodder for further research into its corruption and injustices.