Three federal MPs have been called to court over comments they made about sentencing in terrorism cases.

Health Minister Greg Hunt, Human Services Minister Alan Tudge and Assistant to the Treasury Michael Sukkar have been told they or their legal representatives must appear before the Victorian Court of Appeal on Friday.

The court wants to ask them about their criticism of the state’s judges in an article in The Australian newspaper over appeals in two cases in which the court reserved a decision.

Mr Hunt told The Australian that the Victorian Government should reject “deeply concerning” comments from the court about sentences for terror offences.

“Comments by senior members of the Victorian courts endorsing and embracing shorter sentences for terrorism offences are deeply concerning, deeply concerning,” he told The Australian.

“The state courts should not be places for ideological experiments in the face of global and local threats from Islamic extremism that has led to such tragic losses.”

“No-one should be suggesting that tough terrorism sentences are a bad thing,” Mr Tudge told Sky News.

Mr Sukkar also spoke out in the News Corp publication.

“It's the attitude of judges like these which has eroded any trust that remained in our legal system,” he said.

Prime Minister Malcolm Turnbull also criticised the Victorian parole system after an attack in Melbourne on June 6, carried out by a man on parole.

“The attributed statements appear to intend to bring the court into disrepute, to assert the judges have and will apply an ideologically based predisposition in deciding the case or cases that the judges will not apply the law,” a letter from the court to Attorney-General George Brandis said.

“The attributed statements, on their face [value], also appear to be calculated to influence the court in its decision or decisions and to interfere with the due administration of justice in this state.”

A formal complaint filed with the Commonwealth Director of Public Prosecutions alleges the MPs “scandalised the court”, eroding public confidence in the judiciary.