what's the difference between eyewitnesses reporting their recollections of EMF data gathered by their eyes, a surveillance camera collecting and recording EMF data, and a cell tower collecting and recording EMF data? In the case of the cell tower, the suspect is always carrying a "flashlight", but in the other cases he may be.

Reasonable eyewitnesses omit people + location + times weren't suspicious. The camera only leaves out people at other locations, the cell tower data doesn't leave anyone out.

because the law is not a math equation and context matters.