Far-right anti-Islam group the Patriots Defence League will be investigated for claiming to authorities it is an advocacy group for domestic violence victims.

In its application to the Queensland Office of Fair Trading to become an incorporated association, the PDL has claimed its objective is "to raise awareness of womens and childrens [sic] rights and domestic violence against women and children".

Rally against racism protestors clash with Reclaim Australia protestors at Federation Square on April 4, 2015, in Melbourne, Australia. Credit:Chris Hopkins

But the league is better known for its virulent anti-Islam campaigns.

The group, which called itself the Australian Defence League until last year, was instrumental in the Reclaim Australia marches, and has chapters in major and regional cities across Australia.