It seems that law enforcement agencies are commonly using the records of people’s cell phones to establish where the people (or at least their phones) were at material times.
A US court decision has recently refused to admit such evidence, as not being properly based on science. One expert quoted in the article calls this use ‘junk science’.
Have there been attacks on the use of cell phone records in Canada on the ground that they are not reliable indicators of location? Should there be?
The US case referred to tracking by use of the relation of the phone to cell transmission towers, not to GPS data. The latter are still considered very reliable, so far as I know.