The crime took place in a suburb area of the town, not equipped with security cameras. No witness noticed the fact.
How can investigators verify suspect’s alibi according to the testimony?
Investigators should start the analysis of the radio environment activity to detect the cell sites that literally cover the area of interest, with the most similar conditions of the day of the crime. According to the survey performed and BTS logs examination, they can focus just on the group of cells with interesting parameters to understand suspect’s mobile movements and potential involvement. Asking for the traffic phone records (CDR) of these cells, investigators can search for some valuable junctions in terms of time, location and mobile events happened under coverage of these cell towers.