Prime Minister Julia Gillard has flagged a new national approach to deal with violence in suburban Australia.
Ms Gillard told a cybersafety launch in Sydney on Wednesday she was concerned about two violent incidents in recent days including a confrontation in Woodridge, south of Brisbane, and a fatal shooting in Sydney's southwest.
She said people who lived in suburban parts of the country deserved to live in an environment where they felt safe and secure.
"Whilst these questions are always principally for state governments and for our police authorities they do concern me," Ms Gillard said.
While state police were doing an "incredibly tough job in very difficult circumstances" the federal government also had a role to play.
"At this time all levels of government need to be doing everything that can be done to address this violence," Ms Gillard said.
She has asked Home Affairs Minister Jason Clare to prepare for cabinet some options to address the violence and to explore the limits of the federal government's legal and constitutional responsibilities.
"We will be working through that because I am very concerned about the circumstances for communities in Sydney's west and more broadly."