A woman was arrested on suspicion of money laundering and inciting prostitution for gain in Walton High Street.
The woman, in her 40s, was arrested as part of a police warrant at an address in the High Street on Thursday.
She has been bailed until December 15.
Two other women in their 40s were detained in relation to suspected immigration offences.
A Surrey Police spokeswoman said the matter would be passed over to UK Immigration Services.
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