This is a story you won’t have read too much about, for reasons which will become clear. It starts at the turn of the century, when British high street stores began to allow a number of firms to make “civil recovery” demands for the administrative costs of processing shoplifting cases.

This practice is known as retail loss prevention, and it involves suing thieves in the civil courts. It seems reasonable enough - why should a shop or supermarket lose out just because they’ve caught someone committing a crime? Over the years, the industry grew. Citizens Advice reports that, since 1998, over 750,000 people have received letters demanding substantial sums as compensation for alleged shoplifting or employee theft. Civil recovery firms started to move into other areas. Hotel chains began to use them to chase customers who’d violated their non-smoking policy. Private parking firms went after people who’d violated their restrictions.

And over the years, a clear problem began to emerge. People were being pressed for costs despite not being found guilty of any crime. In one case, a young mother whose toddler opened a drink without paying received a bill for £87.50 for “staff and management time, administration and apportioned security costs”. A typical case was Sam’s. Aged 19, he was dismissed from his job with Tesco in July 2008, for the alleged theft of £4 cash from a till. He subsequently received a letter demanding £191.50, broken down as: £4.00 for the value of “the goods or cash stolen”, £112.50 for “staff and management time”, £33.75 for “administration costs”, and £41.25 for “security and surveillance costs”. Despite criticism from a QC and the Citizens Advice Bureau, the companies insisted that there were civil courts “precedents” which support such claims.

The complaints began to stack up on consumer forums, and the BBC's Watchdog ran a short feature. Oddly, whenever consumers stood their ground, the costs claims rarely seemed to be taken any further. According to Citizens Advice, of the more than 600,000 demands seemingly issued since 2000, only four unpaid demands have ever been successfully pursued in the county court by means of a contested trial.

Citizens Advice began to catalogue a steady stream of cases - no coincidence that they coincided with a rise in self-service checkouts. It soon put together one report, then another, showing that many of these cases were the result of consumer errors, and that many who were guilty had mental health problems and were caught taking extremely low value goods. As Denis MacShane MP told Parliament this year: “In essence, 90 per cent of all shoplifting in our stores is organised by gangs. About 8 per cent or 9 per cent is done by in-house stealing. The tiny one per cent is done—frankly, for the most part—by rather sad people.”

Now the story goes in a different direction. It’s about one civil recovery case, involving two girls who were caught shoplifting from a high street retailer. What happened next is, for the time being, detailed on their lawyer’s website: the case went to court, and the retailer’s assertion that its total losses were almost £137.50 was chucked out of court. Under cross-examination, a security manager agreed the incident had taken one hour and ten minutes to deal with - at a cost of £17, not £98.55 as claimed. He was carrying out his job, not distracted from a core function of it.

What’s interesting is what happened next. The retailer’s agent, Retail Loss Prevention (the biggest firm in the business), instructed libel lawyers Schillings to demand the law firm remove the above link from its website. And this wasn’t the only threat issued by Schillings, who also accused a national official of the Citizens Advice Bureau, Richard Dunstan, of "orchestrating" a three-year long "sustained campaign of harassment and defamation" against it and its staff, asking it to remove the two reports linked to above, and sent letters on behalf of Retail Loss Prevention to various websites.

One of them was the law site Legal Beagles. Like the other parties, it refused to accede to Schillings’ demands. Instead, it decided to publish the letter on its site. So far, this is where the story begins and ends. As MacShane said: “This is a £15 million racket used by a lot of major companies—corporate groups — such as Boots, TK Maxx, Primark, Debenhams, Superdrug and Tesco. They are all shops that we use.”

That the media has shied away from a detailed investigation of the industry, most likely for fear of vexatious litigation, is one thing. And no doubt the PR men have helped out too - does this Wikipedia entry strike you as entirely objective? But that the Citizens Advice Bureau should face legal threats merely for doing its job should tell you all about this country’s ludicrous libel laws. No doubt the billionaires who've journeyed here to settle writs over the last few years have pumped a little into our economy whenever they’ve popped into Harrods. The question is exactly how much we’re willing to receive for our freedom of speech.