Re: How hard can it be!!!
On remand awaiting trial etc., innocent until proven guilty and convictions = 0. It just maybe harder than it looks because of how the data are structured, how disjoint and 'mandrolic' so much of the process still is, and the massive lack of IT skills in a body of people who signed up to catch wrong-doers and wear a natty black costume (call them 'costumes', because it so annoys people who wear uniforms, kit, livery, vestments etc.)
Of course we could demand that the system is improved so that the innocent do not get collectively lumped with the guilty, but that would cost money. Just wait for the 'Daily Fail' headlines about how money is being diverted from frontline policing to appease the demands of civil rights activists and anarchists.
Meanwhile, money is magically available for the latest 'Wunderkind' Home Office project to use AI to identify the farts of potential offernders or some such. If you don't like the status quo then write to your MP, local police and crime commisioner (*giggles*), BBC Watchdog or El Reg comments pages. Remember, for the moment at least (until your conviction for conspiracy to tell the truth), that you have a vote - FFS exercise it with some consideration; checking your prospective MP has at least half a brain and some semblance of moral compass might be a start.