A mother-of-three accused of aiding and abetting in a "premeditated, cold-blooded execution-style murder" north of Adelaide should be released on bail or her children will become "effectively homeless", an Adelaide court has heard.
Simon Middleton, 49, was shot dead in Virginia on March 8.
On Thursday, prosecutor Tessa Diamandi told the Supreme Court there appeared to be no motive for the "premeditated, cold-blooded execution-style murder".
Amanda Jane Draganoff, 50, has been charged with aiding and abetting Mr Middleton's murder, while two men — Ms Draganoff's husband Matthew Draganoff, 44, and Matthew Harmati, 29 — are charged with his murder.
Ms Draganoff was denied bail in the Elizabeth Magistrates Court last month but her lawyer, Anthony Allen QC, was seeking a review in the Supreme Court, claiming his client's three children would be evicted from the family home if bail was denied because the family business — a firefighting foam manufacturing company — would fold.
"The viability of the business relied solely on Mrs Draganoff being released on bail.
"It's not a situation where she can simply hand the reins over for someone to run the business; it requires her or her husband's specific knowledge.
"If she's not released on bail, the business would fold, her house would be repossessed by the bank rendering her three children effectively homeless."
Mr Allen said his client had special circumstances to be released on home detention bail, along with no prior criminal history and no issues with drugs, alcohol or mental health.
But Ms Diamandi opposed home-detention bail, saying Ms Draganoff had "a high level of involvement" in the murder.
She told the court there was a real risk Ms Draganoff could interfere with the police investigation and witnesses if she was released and that she could gain access to firearms - claims disputed by her lawyer.
The court heard the parties were known to each other and Mr Middleton lived in a property attached to the Draganoff family's business.
Ms Diamandi showed the Supreme Court dash cam footage in the two days leading up to the shooting, where she alleged Ms Draganoff was driving around the town of Virginia looking for Mr Middleton, "scoping out his residence", helping source a rifle and finding locations to carry out the shooting.
"We have the applicant driving around looking for the deceased, scoping out his residence, discussing cars at the house, discussing locations for the offence to take place.
"There is a clear discussion between the applicant and Mr Draganoff about scouting locations, about taking cameras down around the area.
"In one of the (videos) she says something along the lines of 'well, you can sit in the bushes and pop goes the weasel'."
Ms Diamandi told the court at one stage Ms Draganoff is seen at Mr Middleton's house on the phone to Mr Harmati saying "we're here, we've got the gun".
In another video, Ms Diamandi said Ms Draganoff is seen helping cut the power to Mr Middleton's house, speculating that was so there was less chance of them being seen.
"This demonstrates a level of knowing that at some stage the plan is for the deceased to be shot," Ms Diamandi told the court.
"She's very aware of what the plan is."
But Mr Allen argued his client was not present at the time of the shooting and there was a case to be tried.
"We accept that there are some statements of ill-will and we accept that there are some statements of animosity towards the deceased, that doesn't mean that she's guilty of counselling and procuring his murder," he said.
Justice Sophie David will hand down her decision on whether Ms Draganoff should be granted bail on Friday.
