Police are reviewing nearly 500 criminal cases after a forensic lab used by forces across the UK discovered “data manipulation” at their Manchester site.
Two men aged 47 and 31, who had worked for Randox Testing Services for three years, have been arrested on suspicion of perverting the course of justice.
Some 484 cases handled by the lab will now be reviewed in an effort to determine whether compromised data played a part in prosecution.
On its website, RTS describes itself as being “an elite service provider on the UK Home Office’s National Forensic Framework” and “entrusted by the majority of UK police forces”.
Based in Northern Ireland, with additional offices in London and Manchester, the company is part of the Randox Laboratories group, which includes Randox Health, the sponsor of the Grand National.
A company statement has been posted on its website saying the issue came to light following an internal investigation at their Manchester site.
Blaming what they call “the perverse actions of individual(s)”, the statement said: “The internal investigation centres on the manipulation of quality control data, which supports test results.
“There is no evidence that either the samples or the quality control materials themselves were subject to interference.”
The company says that there is no evidence to suggest the results of any drink-driving tests have been affected, as those samples are not conducted in Manchester.