When professors proctor exams, part of our job is to answer student questions and clarify the exam, and part of our job is to prevent/catch cheating. At my university in the USA, there is also a "testing center" where students with accommodations (e.g., the right to take the exam in a private space) can take the exam. These spaces have video cameras to prevent/catch cheating.
This made me wonder: would it be possible/appropriate to have a video camera in the primary testing location, for in-person exams? If so, there would be an added disincentive to cheat, and there would also be proof in case the professor witnessed cheating (to prevent a "he said/she said" situation). I found previous questions about video but mostly pertaining to remote exams during the pandemic:
Creating a secure test environment for a programming lab practical
Stance of universities on remote video proctoring of online exams
I also found a discussion of video cameras in academic spaces, suggesting that it's legally allowable:
Preventing leaking exam papers/cheating using phone cameras?
Let's assume that for any class where exams might be video recorded, this information is in the syllabus and students can choose not to take the class. For context, I have been at small liberal arts colleges my whole life, where cameras are not commonly part of the culture. I've never been at a large university so I don't know how normal or unusual video cameras in testing spaces are. Not sure what other considerations would go into the choice of whether or not to add video recording to testing spaces.