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The widow of former bike boss Ricky Ciano was kept in the dark over his activities with the Rebels in the lead-up to his death, a court has been told.
Rachel Ciano gave evidence in her late husband's murder trial at Sydney's Darlinghurst Supreme Court on Monday.
John Tozer, 38, and Daniel Bushell, 49, have both pleaded not guilty to murdering Mr Ciano in 2017.
Ms Ciano, who was three months' pregnant when her husband died, said she assumed he had the means to support their lifestyle, which included a planned shopping trip in Dubai and spending around $20,000 a month on food and clothing.
"Ricky paid for everything," Ms Ciano told the court.
Tozer's barrister Avni Djemal asked Ms Ciano where she thought the income came from to support the couple, neither of whom held regular jobs.
"My understanding was the majority of the income came from illegal activities," Ms Ciano said.
Mr Djemal asked Ms Ciano if she was comfortable being "in the dark" as to the specific nature of her husband's activities.
"Yes," she replied.
While the pair were married, Mr Ciano became president of the Gold Coast chapter of the Rebels, the court was told, which Ms Ciano claimed not to have known about.
The court heard Ms Ciano's father was a senior member of the Queensland Police Force, which her bikie husband was aware of.
She admitted being aware of $39,500 stashed at their Gold Coast apartment. Police seized the cash along with a set of scales with cocaine residue during a raid in 2014.
Mr Ciano's history of drug use was probed, including having at one stage being a regular user of steroids and painkillers.
“I saw him use steroids before. He would inject into his bottom," Ms Ciano told the court.
“I did know he had taken cocaine and MDMA or whatever at a festival.”
He stopped using steroids prior to the couple commencing IVF for health and fertility reasons, she told the court.
Ms Ciano said her husband had abused steroids for years before 2017 and may have also struggled with addiction to oxycodone, a heavy painkiller.
The court was told Mr Ciano left the Rebels in 2015 and that others, including Tozer, also turned in their colours at that time in solidarity with him.
Tozer and Mr Ciano had both been in Silverwater jail at the same time and afterwards maintained a close relationship which ended abruptly shortly before his death.
The trial continues.