http://www.cmc.qld.gov.au/about-us/our-powers/#hearings
Coercive hearings power(Star Chamber-Nickname)
We are the only law enforcement agency in Queensland with the power to conduct coercive hearings, which enable us to compel people to attend and give evidence. This greatly increases our ability to break through the wall of silence that frequently characterises major crime and corruption, and get to the truth of matters under investigation.
Coercive hearings enable investigators to:
open, advance or eliminate lines of inquiry
tie the witness down to a story
test the reliability of a witness
test the strength of a witnesss version of an event
fill in evidentiary or forensic gaps
override the right to silence and the privilege against self-incrimination
secure otherwise unobtainable evidence.
This power enables us to respond to the growing sophistication of organised crime, and to the impact on society of sexual offending against children and other serious crimes that can at times defy ordinary investigative methods. We use our hearings power, not only in our own investigations, but also when police request our assistance with theirs as they do not have the same range of coercive powers.
As well as the power to compel people to attend and give evidence, we have the power to require the production of documents and other items. This is a vital tool for conducting financial investigations into organised crime and money laundering, and we use it extensively to help in confiscating the proceeds of crime.