There is evidence from the Police themselves to suggest official figures should be taken with a pinch of salt:

https://www.bbc.co.uk/news/uk-25022680

'Almost a million crimes a year are disappearing from official figures as chief constables attempt to meet targets, a study by the police watchdog has disclosed.'

https://www.telegraph.co.uk/news/uknews/crime/11236805/A-mil...