The police complaints system is overly complex. Police have unlimited time to investigate and respond to serious issues and take action. 28 days to fully respond to all complaints is achievable and would give the general public reassurance, instead of potentially having to wait years for a response.
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People should be able to complain against police forces and receive a timely response, which should support continuous improvement by police forces. Assaults and mistreatment by police officers should be effectively responded to and dealt with as expeditiously as possible. I myself complained about being assaulted by the police and had to wait 3 years for video evidence of this police assault. This needs to change for everybody.