The Home Office does not hold the information requested centrally.
The Home Office collects and publishes information on the outcomes of criminal investigations involving police officers, following a public complaint or internal conduct allegation. These data were first collected for the 2015/16 financial period. The Home Office does not hold data on criminal investigations that took place prior to 01/04/2015.
Data on the outcomes of criminal investigations in 2015/16 can be found in the misconduct section of the ‘Police workforce, England and Wales’ statistical bulletin: https://www.gov.uk/government/collections/police-workforce-england-and-wales