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Adrian Goldberg presents cutting edge investigative journalism, as well as taking on listeners' campaigns and consumer issues.

New figures reveal that 1 in 39 vehicles have mileage lower than at their last MOT: that's 670,000 cars. It's led to calls for a tightening of the rules surrounding individuals and garages that offer 'mileage correction services.'

Motorists are able to get their clocks turned back but if they sell their car, they must inform the new owner - otherwise it's fraud. 5 live Investigates found that six out of ten mileage correction services it contacted were willing to change the mileage reading knowing it was possibly to deceive a new owner. Listen to our secret recordings.

Also, denied justice. The modern day slaves working for the rich and powerful in the UK. Despite being awarded damages for the abuse and exploitation they've suffered, many have yet to see a penny. They are domestic workers brought into the country by overseas diplomats and business people. They've been paid below the minimum wage and in some cases have suffered sexual harassment. They've taken their bosses to employment tribunals and won - but 5 live Investigates has found those tribunal rulings are being ignored with impunity.

And Russian Spies: Just what are they after? We ask former MP Dr Kim Howells.

To contact the programme, email goldberg@bbc.co.uk - or send comments via Twitter to @5LInvestigates.