Corryn Rayney believed her husband was concealing income and planned to kick him out of the family home amid rumours he was having an affair, a leading Perth magistrate has told Lloyd Rayney's murder trial.
WA Deputy Chief Magistrate Elizabeth Woods also gave evidence that Mrs Rayney told her she and Mr Rayney "were going to have a big discussion about their relationship" on the night she was killed.
"I know that the relationship between Corryn and Lloyd was not happy," Ms Woods said in a statement tendered to the Supreme Court.
"Corryn told me that she was not happy that she did not know what he was getting paid.
"She told me that he had opened a bank account and she did not have access to it.
"Corryn told me the family had lost a lot of money through Lloyd's gambling and, as a result of that, she had taken control of all of the finances, bank accounts and paying the bills.
"Corryn was concerned that . . . she didn't know how much Lloyd was getting paid.
"She was thinking of subpoenaing Lloyd's clients to find out how much he was getting paid."
Ms Woods had been a friend of Mrs Rayney for five years and knew Mr Rayney from her time at the Director of Public Prosecutions.
She appeared only briefly at the Supreme Court trial yesterday but an edited version of her statement was released to the media.
The court has previously heard Mrs Rayney suspected her husband of concealing income, including $200,000 from major client Hancock Prospecting, and feared he had returned to gambling.
In her brief appearance, Ms Woods said she told Mrs Rayney of "information, rumour, gossip that he was paid about $200,000 in a trial as counsel".
She said the name she was given in relation to the payment was "Hancock".
Ms Woods said the conversation with Mrs Rayney took place on either July 26 or August 2, 2007, making it one or two weeks before her death on August 7.
In her statement, Ms Woods said Mrs Rayney had "never complained to me about domestic violence".
She also revealed details of a conversation in which she told Mrs Rayney, in an apparent reference to Mr Rayney, of "rumours that he was involved with a girl".
"On Tuesday, August 7, 2007 I believe Corryn and Lloyd were going to have a big discussion about their relationship," she said.
"Corryn wanted to sort out the access to the children with Lloyd as well as the financial situation.
"I spoke with Corryn over the phone and she told me she was planning on getting rid of Lloyd from the house.
"I explained that it might be worthwhile for her to leave but she didn't want to as she wanted to remain in the house."
The prosecution alleges Mr Rayney was aware of his wife's suspicions because he had been secretly listening in on her.
It alleges he feared the embarrassment and damage to his career that would come with the exposure of his gambling habits and infidelity.
Ms Woods said in her statement she did not believe Mrs Rayney was "involved with anyone else" at the time of her disappearance.
The trial will resume on Tuesday.