Intentional tampering cases in forensic drug case going beyond the original few hundred originally published.

She said: ‘The organisation concerned held accreditation to the appropriate quality standard, but the malpractice was not discovered by the usual quality checks.

‘This raises a number of questions, including: a, whether or not malpractice is more widespread than at one organisation; and b, whether or not the quality standards need to be strengthened.’

http://www.dailymail.co.uk/news/article-4980962/Forensics-scandal-hits-10-000-cases.html

https://www.thesun.co.uk/news/4687206/rogue-scientists-may-have-scuppered-10000-cases-including-rape-and-murder-with-tampered-blood-tests/