British Rurik Jutting, a 29-year-old banker, was remanded in custody in Hong Kong earlier this month and referred for psychiatric testing.
He is accused of killing Sumarti Ningsih and Seneng Mujiasih, who were found dead in his flat on November 1.
The two Indonesian women were in Hong Kong as domestic workers but working in the s** trade.
Judge Bina Chainrai ruled that Rurik Jutting was mentally fit to stand trial after spending two weeks having tests in a secure psychiatric centre, the AFP news agency said.
The case has now been adjourned until July 6, 2015, at the request of the prosecution who argued that several months were needed to examine the evidence in detail.
Wearing the same T-shirt as his last two court appearances, with New York written on the front, Rurik Jutting said he understood he would be held in custody until next year.
Rurik Jutting has not entered a plea. If found guilty, he could face a life sentence.
On November 1, he called police to his up-scale home in the Wan Chai nightlife district. Two days later police charged him with the murders which appear to have happened a few days apart.
Seneng Mujiasih’s body was found in the living room with knife wounds to her neck and buttock.
Sumarti Ningsih’s body was found a few hours later in a suitcase on the balcony. She had sustained neck injuries and police believe she was killed on October 27.
Rurik Jutting, originally from Cobham, Surrey, is a Cambridge University graduate and also studied at Winchester College, an independent boarding school in Hampshire.
Rurik Jutting was working in Hong Kong as a securities trader at Bank of America Merrill Lynch until just before the women died.
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