An anonymous reader writes: Tasers get used. They are a less lethal way of dealing with people who need to be apprehended or subdued by police. Occasionally people die. The manufacturer(s) pass the buck, quoting some mechanism that isn't universally believed. If there are very few mechanisms/processes whereby this obscure mechanism blamed initiates the death of someone receiving a taser shot exist, one can be pretty sure that the death was caused by taser, and not some mystery thing.
But regardless of that, injecting a person with a couple of electrodes gives a potential source of information (as long as the electrodes are still implanted). It might be a good thing for tasers to actually record physiological responses after impact and jolting, so as to provide more information to enquiries after the incident. Does any manufacturer do this? If not, why not?