They had a bunch of CCTV and no name. The AI gave them a few names, they looked at its report which had photos from the guy's social media and were like 'yes that's him', and then got a warrant to go to his house and found the gun.
Perhaps there's some important principle of rights that's eluding me. But it seems like the actual murderer was seen on CCTV and found with the murder weapon, and claiming AI (used as a search tool) as an illegitimate cause for the warrant is a ploy by the defence. Doing their job, sure, but it doesn't seem like natural justice or any broader rights would be served by letting this guy off.
It would be different, the Prosecutor's Fallacy, if the AI->name link was used to justify guilt, but instead the standard of human facial recognition used for getting other warrants from CCTV can be used.
Perhaps there's some important principle of rights that's eluding me. But it seems like the actual murderer was seen on CCTV and found with the murder weapon, and claiming AI (used as a search tool) as an illegitimate cause for the warrant is a ploy by the defence. Doing their job, sure, but it doesn't seem like natural justice or any broader rights would be served by letting this guy off.
It would be different, the Prosecutor's Fallacy, if the AI->name link was used to justify guilt, but instead the standard of human facial recognition used for getting other warrants from CCTV can be used.