Analysis from the Office for National Statistics suggests there is a discrepancy between police records of crimes and the Crime Survey for England and Wales (CSEW).
The CSEW works by "asking people whether they have experienced any crime in the past year," whereas police records are based on officers recording offences in their patch.
The differences between these methods may give rise to discrepancies, although the exact reason why police records appear to overstate crime reduction is a matter of controversy.
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