Kunyi He, of Totteridge Road, High Wycombe, is accused of being a key player in the running of 10 brothels in the South-east including addresses in Altwood Road in Maidenhead; Monarch Court in Langley and Copper Beeches Guesthouse in Bath Road, Knowl Hill, between 2008 and last year.
He has denied one count of conspiring to keep brothels.
Judge Peter Ross is due to start summing up on Monday at Reading Crown Court.
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CCTV images have been released of men police would like to speak to in connection with a homophobic attack on a couple as they took a train home from a Valentine's Day meal.