Mother puts up $1.4m surety for daughter on gang murder charge

A woman who was allegedly involved in a murder and attempted murder of Bankstown Brothers 4 Life members has been granted bail after her mother posted a $1.4 million surety.

Police say Amanda Crowe - along with Farhad Quami, 32, Mumtaz Quami, 29, and 22-year-old Jamil Quami - murdered Mahmoud Hamzy in Revesby Heights in Sydney's southwest last year.

Mr Hamzy, the cousin of notorious NSW prisoner and Brothers 4 Life boss Bassam Hamzy, was found dead in his garage just after midnight on October 29.

Days later on November 7, it is alleged Crowe was involved with a shooting and attempted murder of another gang member.

Crowe, who faces a raft of other charges, including participating and directing a criminal group, appeared in prison greens via AVL at the Supreme Court on Thursday to make a bid for bail.

Describing the crown case against her as weak, her barrister Winston Terracini SC said it rests on one witness who has given two different versions of the event.

"The fact that he has changed his version is alarming and the unreliability of that witness will be brought into play," he said.

Mr Terracini also submitted that there was no ballistic, DNA or fingerprint evidence to tie Crowe to the alleged murder of Mr Hamzy.

"There are some intercepted telephone calls taken by the police. They have some relevance but they do not go to the issue of us being involved in the murder," he said.

"Other material tends to suggest some knowledge of things but fall far short of participation," he said.