CDR Cross Exam Testimony Flashcards
Isn’t it true that a cell site can get overloaded and the phone will need to skip to the next site. And, that site can be overloaded, and the phone will have to go to the next one and the next one?
-Overloaded issues usually only occur during catastrophic events such as natural disasters. When this occurs calls just can’t be made.
-The first tower used in the CDR is STILL the one with the best signal at the time the phone asked the tower for resources. This is done on the Access channel. If that tower is busy the call will be moved to another channel and another tower which will be listed as the 2nd tower in the record.
Isn’t it true that a cell site can cover 20 miles or more?
The technology does allow for this WHEN a site is designed, configured and installed to do so. These sites are not typically found in urban areas.
A typical location for this type of cell site might be along a rural interstate with no major towns for 100 miles.
What is the range of a cell phone tower?
Each cell tower is set up to provide coverage to a specific area around the tower and none of them are the same, it varies by technology and many variables.
Isn’t it true that these maps can be inaccurate?
No, if the map only reflects the lat/long and azimuth in the records.
Is the phone’s location ever given in these records?
These records only contain the location of the antenna used NOT the exact location of the phone.
Who had the phone at the time of the crime?
Unknown, these records only provide information on the phone NOT the user.
