Raban Alou has today been sentenced to 44 years in prison for his role in the murder of NSW Police civilian employee Curtis Cheng.

The Minister for Home Affairs Peter Dutton today acknowledged the ongoing work of police and security agencies in bringing the perpetrators of this crime to face justice.

"I also commend the strong sentence imposed by Justice Peter Johnson in the New South Wales Supreme Court," Mr Dutton said.

"This is a great example of the strength of Australia's counter-terrorism laws and the excellent work by Australia's law enforcement and security agencies to counter threats to our community."

Mr Cheng was shot and killed outside NSW Police Headquarters in Parramatta on 2 October 2015 by Farhad Mohammad.

Raban Alou acquired the firearm that was used in the murder and provided it to the shooter.

He was sentenced for aiding, abetting, counselling or procuring the commission of a terrorist act by Farhad Mohammad under the Commonwealth Criminal Code.

"Our law enforcement and security agencies are among the best in the world and should be acknowledged for their ongoing efforts to do everything within their powers to keep the community safe," Mr Dutton said.

"The safety of the Australian community is the Government's paramount priority and anyone who is identified as a potential threat to our community will be investigated by relevant agencies."