Violent gunman responsible for one of Australia's longest sieges due to be released from jail

In 1994 Tony Grosser shot Senior Constable Derrick McManus 14 times, triggering one of Australia’s longest police sieges.

Now, the violent gunman is due to be released from prison despite fears he still poses a threat.

Snr Cst McManus had arrived at the property to serve a summons when the siege situation unfolded.

Grosser is responsible for South Australia's longest siege.
Grosser is responsible for South Australia's longest siege.
Grosser shot Snr Cst Derrick McManus in the 1994 siege.
Grosser shot Snr Cst Derrick McManus in the 1994 siege.

Grosser remained holed up in the Nuriootpa home, in the Barossa Valley, for 40 hours.

After the siege came to an end he was jailed for 22 years, but in eight days he will be free.

Grosser's victim's fear he hasn't been rehabilitated and shared concerns that they will need to be protected.

In a legal first, South Australia’s Attorney-General John Rau will seek parole like conditions for Grosser's release.

Photo from the 1994 siege.
Photo from the 1994 siege.

Mr Rau will request the first extended supervision order under the new High Risk Offenders Act.

The aim is to reassure those affected by Grosser’s crimes that he will be monitored.

In addition to a supervision order, he could be subject to treatment orders, travel restrictions and drug, alcohol and firearms bans.

Mr Rau is also expected to ask that Grosser wears a GPS tracker at all times and lives at an approved address.

If Grosser breaches a condition of the order, he will be sent back to jail.

News break – April 10