A former NSW Police sergeant who allegedly let his teenage son fire his police gun has been charged with firearm offences.

Following reports that a then serving officer had, in May 2021, had let his son discharge his police issued firearm on a private property, the NSW Police Professional Standards Command formed Strike Force Vertical to investigate the incident.

Investigations by officers attached to Strike Force Vertical led to the man, who is now aged 50, being issued with a Future Court Attendance Notice by police on Tuesday, February 13, to face three charges of give pistol to person not authorised by licence or permit, and one count possessing an unauthorised pistol.

Police said the man was formerly a Sergeant attached to a Northern Region command when the alleged offence occurred, but he left the NSW Police Force in 2022.

The CV Independent asked NSW Police media which command the former Sergeant was attached to and the location of the property where the alleged offence occurred.

As the matter is before the court, police said it would be inappropriate to comment.

Originally the man was scheduled to appear in Grafton Local Court on March 25, but following an application by the former police officer, the matter was mentioned in Grafton Local Court on Monday, March 11.

The man is next scheduled to appear at Grafton Local Court on May 13.