No it’s not, and that isn’t the reason for the ban, because it’s not true.
Edit: Agreed, no conviction was involved, so their statement looks exaggerated.
Yes, so a wrongful arrest was made, and thus the technology isn’t perfect, so we shouldn’t use it is the thinking?
Well actually no, apparently wrongful arrests aren’t sufficient cause to ban a technology but only one believed to racially discriminate lol.
Or maybe the real reason is because it’s become fashionable of late to fuck the police and the whole because reasons is an afterthought.
In any case, the larger point, the one suggested by the OP, the one met with foolish acquiescence in response, the one suggesting that our justice system convicts people on the basis of facial recognition technology is wrong..