Parliament will reconvene this week in a very different mood to the last time federal politicians came together in Canberra.

The troubles besetting the budget, which dominated national debate for months after it was delivered in May, have slipped into the background amid an outbreak of bipartisanship over the rising threat of the Islamic State and last week’s raids in Sydney and Brisbane, which foiled an alleged terrorist plot on home soil.

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With Treasurer Joe Hockey still fighting for passage of critical policies, attention has swung away from domestic politics to meetings of the UN security council, proposed changes to laws targeting supporters of Islamic terrorist organisations and the delpoyment of Australian fighters to Iraq and Syria.

This week, Prime Minister Tony Abbott will delivers a “security statement” and the government is expected introduces laws to crack down on home-grown extremists.

Attorney-General George Brandis will introduce a second tranche of anti-terrorism laws on Wednesday, targeting Australians who choose to fight with or support terrorist groups overseas.

A security camera is seen outside Parliament House in Canberra. Photo: AAP

He will also lead a debate starting on Monday about expanding the powers of the Australian Security Intelligence Organisation (ASIO).

“We expect this legislation, that is the agency powers legislation, to be through the parliament within the next sitting fortnight and we expect the foreign fighters legislation … to be through the parliament in coming weeks,” Senator Brandis said.

The proposed laws would make it an offence to travel to certain areas, such as Syria and Iraq, without a valid reason.

He is confident Labor will support new national security laws targeting foreign fighters.

“We want to see the detail of these laws,” Labor frontbencher Mark Butler said.

“We’ll work through those details very carefully. Talk to the government in a spirit of goodwill and see we were land.”

As security is beefed up around Parliament House, Mr Abbott will deliver on Monday what he has described as a “security statement”.

Should the Australian military contingent gathering in the United Arab Emirates be sent into Iraq to tackle Islamic State extremists, the prime minister has promised a further statement.

The Labor and coalition party rooms are expected to discuss the issue. Left members of the Labor caucus have voiced concerns about “mission creep” as Australian defence personnel prepare to join a multi-nation operation in Iraq.

Mr Abbott will be present for only the first two days of parliament next week before heading to New York for talks with US President Barack Obama and other leaders on the situation in Iraq and Syria.

-with AAP, ABC