Earlier quoted context omitted.
It's easy to use a camera as evidence in, say, a robbery. The camera will show you actually committing the crime. If you're speeding, something's measuring your speed based on camera images. The method used to determine speed is not described in detail, just "trust us, they were going the speed we say". It's not generally the city who is doing this, but a third-party private company which sometimes is paid per ticket…
I can definitely see these systems being used illegitimately, but this has nothing to do with whether you can face your accuser. A software company telling you that you cannot validate the methodology of their measurement instrument is definitely troubling, but it is not fundamentally dissimilar to the police using speed guns whose internals you cannot inspect to convict you of speeding. Even more problematic than ei…
Could you elaborate on what you think the benefits are?
I'm of the opinion that systems that indiscriminately check whether all people nearby are currently committing a crime should not be things we should be building in our society. I would prefer there be a reason to suspect a person of a crime, and pursue on a targeted basis, rather than simply have panopticons charging people with crimes.
For example- with the system in this article, I would prefer if a person were required to call in and complain "there was a too-noisy car at this location at this time", and then a person reviewed footage from that location at that time and determined whether to send a ticket out or not.
Regarding your points about transparency, I completely agree with you.