Written evidence from Leapwise raised the importance of having a measure of police productivity to assess and reward police forces. It noted that the absence of such a measure has meant that the current decline in police productivity is hidden.18 The Home Office told us that it has not yet agreed a measure of police productivity or what metrics it will use to track this, due to difficulties measuring policing outputs. It is working with the ONS and police forces to determine how to measure police outputs.19 9 Qq 14, 18-19 10 Qq 19-20 11 Q 10 12 Qq 13, 20 13 Committee of Public Accounts, Financial sustainability of police forces in England and Wales, First Report of Session 2015–16, HC 288, 9 September 2015 14 Q 121; C&AG’s Report, para 1.3 15 Q 12 16 C&AG’s Report, para 1.17 17 Q 12 18 Leapwise (IPP0013) 19 Qq 80, 84 9