The Berejiklian government has sacked a commissioner of the NSW Police watchdog, following an investigation into a complaint he levelled against the organisation’s top official.

Patrick Saidi was removed from his position as oversight commissioner at the Law Enforcement Conduct Commission (LECC), which is responsible for investigating complaints against police, on January 15.

Law Enforcement Conduct Commission chief commissioner Michael Adams, QC, and oversight commissioner Patrick Saidi (inset) are both leaving the organisation this month. Credit:Phil Carrick, Supplied

Mr Saidi's termination follows an investigation into an official complaint he made against his superior, LECC chief commissioner Michael Adams, QC, who is also due to depart the watchdog this month.

The complaint was investigated by assistant inspector of the LECC, Bruce McClintock, who delivered his findings in a report to the presiding officers of the NSW Parliament in December. A copy was also made available to the Department of Premier and Cabinet.