A Perth man is the second person to be charged with drug trafficking offences, involving 1.1 kilograms of methamphetamine, as well as other drugs and cash seized from two Nollamara homes.
Australian Federal Police searched the homes earlier this week where the methamphetamine, 350 grams of heroin, 100 grams of cocaine and $100,000 cash were discovered.
Vehicle wheels, believed to have concealed illicit items, mobiles and other drug trafficking paraphernalia, were also seized during Operation Loxton.
The AFP announced on Saturday that additional charges were laid in the investigation, leading to the man's arrest.
The 26-year old was charged with trafficking a marketable quantity of methamphetamine and dealing in proceeds of crime worth $50,000 or more.
The man is related to the 57-year old woman involved in the incident.
She was charged on Friday over the incident with trafficking a marketable quantity of methamphetamine and heroin, and dealing in proceeds of crime.