Terror suspect dodged police questions

A man alleged to be involved in the shooting of police employee Curtis Cheng has been sentenced to a maximum of nine months in jail after he refused to answer questions at the NSW Crime Commission.

The man, who can't be named, last year pleaded guilty to four charges of failing to answer questions from the commission.

At Sydney's Central Local Court on Wednesday, Magistrate Beverley Schurr sentenced him to a maximum of nine months in prison and a non-parole period of five months, backdated from November 22, 2016.

It means the man was eligible for parole in April 2017, however he remains behind bars in relation to other alleged offences.

Crown prosecutor Cassandra Hurford had submitted the man "wilfully acted so as to frustrate" the commission's investigation by refusing to answer questions.

But defence barrister Avni Djemal argued he didn't hinder their investigation, as it was clear from their questions that police already knew most of the answers.

Ms Schurr said she considered several factors in sentencing, including the man's guilty plea, his family support, and the fact that he was aware of the consequences before he refused to answer questions before the commission.