Organized crime groups are exploiting the rental property market by using sophisticated fake identity documents to secure tenancies and operate brothels. A BBC Panorama investigation, 'There's a Gangster in My Flat,' uncovered how these criminal networks are able to pass checks, even with reputable letting agencies, by presenting forged passports and references.

One property developer, Craig Shepheard, discovered his apartment in St. Albans, Hertfordshire, was being used as a pop-up brothel by a Brazilian organized gang. After initially believing the tenant was a courier, Shepheard became suspicious due to neighbor complaints about late-night visitors and the tenant's unusual behavior, such as blacking out windows. When the rental payments stopped, he investigated further, finding what he described as "sexual paraphernalia."

Following his report to the police, Shepheard began filming men entering the property. During a subsequent inspection, he found women inside who admitted to being sex workers paying approximately £400 each per week for the room. The women were part of a prostitution ring that moved individuals between rented properties across England.

Authorities later informed Shepheard that the forged passport used by the tenant was of a high quality, described by immigration officials as one of the best they had encountered. The tenant's true identity was never uncovered, and the sex workers disappeared. The St Albans home was being used by a Brazilian organised gang operating pop-up brothels

Under current housing law, landlords often face significant hurdles in evicting tenants involved in criminal activities. Shepheard's solicitor eventually managed to persuade the tenant to vacate the property, but not before Shepheard incurred four and a half months of unpaid rent and a £4,500 repair bill. Property developer Craig Shepheard thought the tenant was someone working as a courier

Shepheard stated that despite following correct procedures and using a professional letting agency, the process of reclaiming his property and addressing the damage was excessively difficult. He plans to sell the apartment due to the considerable hassle involved. The owner realised that his flat was being used as a brothel and reported the situation to police

These criminal networks often avoid prosecution, leaving landlords to pursue legal action through civil courts. The BBC's investigation highlights the challenges landlords face when their properties are infiltrated by organized crime. There were complaints from neighbours about men visiting the flat in St Albans late at night

The investigation featured journalist Hazel Martin, who examined the methods used by these gangs. Investigative journalist Hazel Martin looked at the situation for the BBC's Panorama programme

The BBC Panorama episode 'There's A Gangster in My Flat' is available on BBC iPlayer.