The Lahore High Court has ordered the Punjab government to publish its report into the 2014 Model Town incident within 30 days.
The Punjab government had argued against issuing the report, saying it was "of a sensitive nature".
On 17 June 2014, at least 14 people were killed and 100 others injured when police launched an assault on supporters gathered outside the residence of the founder of the PAT political party, Dr Tahirul Qadri.
The incident has since been remembered as the Model Town tragedy.
Five police officers remain under arrest as a trial into the incident continues.