A man and woman have been arrested on suspicion of illegal money lending after an operation in Burgess Hill on Monday.
A warrant was executed at the address and documents and an amount of cash were seized.
The warrant was executed by The England Illegal Money Lending Team working in partnership with Sussex Police and West Sussex Trading Standards.
The suspects, aged 32 and 36, are currently on bail after being questioned by officers.
Nationally the Illegal Money Lending Teams have secured more than 310 prosecutions for illegal money lending and related activity, leading to nearly 200 years worth of custodial sentences.
They have written off £55 million worth of illegal debt and helped over 23,000 victims.
To report a loan shark call the 24/7 confidential hotline 0300 555 2222.