The US Marshals being involved reminded me - I have a friend who is currently a Special Agent for US DOS, but previously worked for the Marshals service, and I could ask him some questions!
Why would the Marshals service be involved in a MP case?
Could be attached to a task force, which are usually comprised of a multitude of state and local agencies.
Or the person of interest could be a fugitive for justice and has a pacer warrant.
So there would definitely BE a reason they are involved because they wouldn't typically be involved in any/all MP cases?
Again they very easily could be. It’s not atypical. I’m guessing the Marshals involved are a part of a task force and this is a task force case OR there is a nexus to a fugitive of justice and this is a court-wanted individual involved in the case.
What kind of capabilities could be used to track the phone?
Marshals can use stingray and triangulate phone. If they can figure out the IMEI number of an iPhone they could trace that as well. IMEI can be traced as long as the phone has battery - they used it for us when we were deployed to Libya and places like that. I signed consent to monitor forms for dates I was on mission incase we were captured.
What kind of process would it be to be able to use IMEI to track the phone of a civilian MP? How long would it take?
It depends on carrier and law enforcement agency investigating the case. I’m sure they have done what they need to in order to find it.
“The investigative team, formed during the first days of the search, continues to meet daily to share information from the previous day’s efforts, discuss possible leads, and plot the course of the investigation. The team consists of Investigators from the Police Department’s Criminal Investigation Division and Organized Crime Unit, the FBI, the Texas Rangers, and the United States Marshals Service, along with three Forensic Computer Examiners, and one civilian crime analyst.”
Yeah sounds like a task force for sure.
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One thing I took away from this conversation is that either the phone was not able to be traced (dead or destroyed), or it was, and where it was traced to provided no additional clues/information.