Scotland Yard to urgently review 21 sex attacks over botched forensic examinations

More than 30 criminal investigations including 21 sex attacks are being urgently reviewed after a forensic scientist apparently botched examinations.

Scotland Yard said a member of staff from its Forensic Services allegedly failed to carry out tests and lied to investigators about how the work was progressing.

A total of 33 inquiries between 2012 and 2017 are affected – 21 rapes and sexual assaults and 12 violent and drug-related crimes and burglaries.

The force said in a statement: “We are urgently conducting a review to understand whether there is any risk to the criminal justice process and to take remedial action where necessary.

“All victims in the affected cases have been contacted, where it has been deemed appropriate to do so.”

All the work of the scientist, who was suspended on March 26, has been audited and the Met said it is “satisfied that there are no other instances of undeclared casework”.

The case comes amid a national crisis in forensic services, following the closure of the publicly owned Forensic Science Service in 2012.

Techniques including analysis of DNA, fingerprints and digital evidence play a major role in a range of criminal investigations and the move forced police forces to either bring the services in-house or use private providers.

One, Key Forensic Services, collapsed in January, potentially affecting thousands of cases.

Another, Randox Testing Services, was hit by claims of manipulation of results.

Around 10,000 cases – three-quarters of which were drug-driving and the rest violent crime, sexual offences and unexplained deaths – were affected across 42 police forces.

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