The Australian Democrats will renew calls for a Senate review of Australia's counter terrorism laws when federal parliament resumes next week.
South Australian Democrat senator Natasha Stott Despoja said a comprehensive review of Australia's counter-terrorism measures was needed, including an examination of their adequacy and effectiveness.
Her calls followed comments from Australian Federal Police Association chief executive Jim Torr who described the laws as so wide-ranging and so new to concepts of policing that they needed digesting.
He also urged law makers to show extreme caution when considering further changes.
"It is clear from a recent terrorism investigations that our security agencies are struggling to grapple with the raft of new powers introduced since 2001," Senator Stott Despoja said.
"Reviewing one or two individual cases is not enough.
"We need an all-inclusive review of the powers available to our security and intelligence agencies and how they are being used."
Senator Stott Despoja's first bid for a Senate inquiry was voted down last year.
She said she planned to move a second motion calling for a full and complete investigation.