Sorry, Daily Mail article —
Blunders in the use of controversial snooping powers meant 13 people were wrongly arrested last year on suspicion of being paedophiles. Another four individuals had their homes searched by detectives following errors in attempts to access communications data, a watchdog revealed yesterday. Other mistakes also included people unconnected to an investigation being visited by police and delayed welfare checks on vulnerable people including children whose lives were at risk, said the Interception of Communications Commissioner. [….] A large proportion of the errors involved an internet address which was wrongly linked to an individual. Of the 23 serious mistakes, 14 were human errors and the other nine ‘technical system errors’.