NSW Premier Mike Baird says he is taking no chances when it comes to ensuring suspected criminals in the mould of Martin Place gunman Man Haron Monis are kept off the streets.
In a move that pre-empts the findings of State Coroner Michael Barnes' long-running and comprehensive inquest into the Sydney siege, the Baird government has promised tough new bail laws that will make it almost impossible for any defendant who has links to terrorism or violent extremism to be granted bail.
Mr Baird says he hopes the new measures will help avoid any repeat of the events of last December, when Monis took 18 hostages in the Lindt Cafe and ended in the shooting deaths of Tori Johnson, Katrina Dawson and Monis himself.
"Nothing can change that day, but what we can do is learn from that day," Mr Baird told reporters in Sydney on Friday.
The current laws, he said, would have been enough to keep Monis in custody, but the new changes will bolster those laws even further.
"The advice I have is that the changes we made previously to the bail laws would have done exactly that. This is additional protective measures," he said.
The premier says the government will also act on any recommendations Mr Barnes might make on finalising his coronial inquiry, which is examining why Monis was out on bail despite facing a murder accessory charge, and whether the deadly siege was an act of terrorism.
Under the promised NSW changes, anyone who has been the subject of a terrorism control order; is fighting a terrorism charge; or has any previous convictions for terrorist offences will not be granted bail unless he or she can demonstrate exceptional circumstances.
That might include a defendant who needs urgent medical care, Mr Baird said.
Judges and magistrates who are deciding whether to grant bail must also take into account an accused person's links to terrorist organisations, and any statements or actions they have made supporting terrorist activities or violent extremism.
But the attorney-general has indicated defendants who are already out on bail, who would be captured under the proposed changes, are unlikely to be taken back into custody.
"They won't be retrospective changes," Attorney-General Gabrielle Upton said.
"As we craft the laws, if they do reach into things that are before the court or processes that haven't taken place, they will apply to those processes that are yet to happen."
NSW Opposition Leader Luke Foley says Labor will support the new "common-sense" laws.
"Anybody who has been caught up in surveillance, and been assessed by the security agencies as (posing) a risk of carrying out a terrorist-related offence, should not be given any benefit of the doubt if and when they're before the courts on any matter," Mr Foley told reporters.
Tough new penalties for gun crimes and a new offence covering possession of a stolen firearm are also expected to come before parliament soon.
