Cell Cite Analysis is a powerful tool that allows forensic investigators to determine important parameters related to the conditions of a phone call or a text message that was made or received by a specific handset.
Using unadulterated evidence provided by mobile operators, we can determine the relative whereabouts of a handset a specific time and day. This evidence coupled with other forms of evidence (i.e. witnesses) can provide a more solid alibi for the defendant.
In cases of disloyal employees, this evidence can determine if an employee was where they said they were, while on duty.
The same method can be used to determine where your children have been when they were supposed to be at school, etc.
The accuracy of the positioning through cell site data is relevant to the density of the network at the locus. In the city centre of a big city the location can be accurate within a few meters or tens of meters, whereas at the countryside, it can be a radius of up to a mile or more.
In most cases however, even the relative location is enough to confirm that the handset was nowhere near where it was supposed to be. So for example if your child was supposed to be at school at the West End of Glasgow but it is found to be within 100 meters from Ibrox stadium, than there is enough proof that the child was not at school.
We recently gave evidence in a court in Ayr, regarding cell site data and analysis. Our investigation proved beyond any reasonable doubt that the defendant's mobile could not have been at the locus, and the Procurator Fiscal failed to prove that the defendant was not with his mobile at the time.