The wife of the gunman killed during this week’s cafe siege will have her bail reviewed at Sydney’s Supreme Court.

Man Haron Monis’s wife has been on bail since being charged with involvement in the murder of his ex-wife.

If the original ruling is overturned, Amirah Droudis could be taken into custody.

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NSW Attorney-General Brad Hazzard recently expressed concern she was out on bail and asked the Director of Public Prosecutions to review the decision.

“The charges laid against Amirah Droudis are extremely serious and her alleged actions involve a murder,” Mr Hazzard said in a statement on Thursday.

“On behalf of our community I want to know whether every aspect of her being on bail has been examined in all possible detail.”

The review comes after questions were raised as to why gunman Monis was also out on bail.

Monis came to the attention of police when he sent hate-filled letters to the families of dead Australian soldiers seven years ago.

He also faced dozens of indecent and sexual assault allegations before his death on Tuesday.

Mr Hazzard has asked the DPP to review any cases where bail has been granted and where there may be any similarity to the circumstances of the Monis matter.