Scores of convictions in doubt amid forensic test manipulation claims

Police say scores of convictions may be overturned because of the suspected manipulation of forensic tests at a private laboratory in Manchester.James Vaughan, the national police lead for forensic outsourcing, said two employees of the testing services company Randox were under criminal investigation after issues with test results emerged in January.Vaughan said the investigation had grown, with 6,000 samples having to be re-examined.