Cyber Crime Review
Cyber Crime Review

June 2023
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What type of process is required for a cell tower dump?

Cyber CrimesCyber Crimes

I was recently in a discussion concerning the type of process needed for law enforcement to obtain a tower dump from a service provider. A tower dump allows police to request the phone numbers of all phones that connected to a specific tower within a given period of time. Beyond this list, law enforcement could also request customer information, allowing them to match the cell numbers with a specific customer’s name, address, and other account information.

Under the Stored Communications Act (SCA), information can be obtained from phone companies (and other service providers) by use of a subpoena, 2703(d) order, or search warrant, depending on the type of data requested. For example, a subpoena can be used to obtain basic subscriber information. However, account logs and transactional records require a 2703(d) order – which requires specific and articulable facts to believe the records are relevant to an ongoing criminal investigation.

So the question to my readers is this – what type of process is required for a tower dump? We’re just curious as to how easily phone companies are giving the information away. The specific and articulable facts standard seems too high for a tower dump, but a subpoena doesn’t exactly seem sufficient. Or does a tower dump even fit under the SCA since that report alone only gives away phone numbers and not account information? Please leave a comment to this article if you have any ideas.

After a quick search, I was only able to find one reported case that mentions tower dumps – Jackson v. State, 716 S.E.2d 188 (Ga. 2011). In that case, police had obtained the defendant’s cell number from a tower dump following a series of crimes. This, of course, only showed the defendant was in the area of the crime. On appeal, Jackson argued that the records are “not sufficient corroborating evidence as they only establish where his cell phone was at the time of the crimes, and not where he was, since he may have let a friend borrow his phone.” The Georgia Supreme Court upheld the use of the records. Unfortunately, proper process was not an issue in that case.

Last month, the ACLU released a report on the use of cell site data by law enforcement. Click here for my earlier post.

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