Man of Honour
Yes, that was a rhetorical question. I was making a point that they shouldn't be where possible. Physical media is suspectible to loss, tampering, theft and data corruption. Interviews should be encrypted at the point of recording so they are never in plain text, and automatically stored in a system that is protected from all the above. Home users have such systems in place for their family photos ffs.
It's so normal for supposedly secure systems to be compromised and the data exposed that it doesn't even make the news unless it involves at least tens of millions of people and probably not even then. It's such a common occurence that it's not news. At least with physical media the data exposure is always very limited.
It would be very expensive to impose a single system on every police force, the CPS and every other aspect of the legal system. Far more than £325,000.
Are digitally altered recordings admissible in court? If not, you'd have to get that changed too.