Russian Government Official < was across the street from the book store, carrying a briefcase.
I observed Chapman pull a laptop out of the tote bag. Chapman stayed in the book store for approximately thirty minutes; Russian Government Official < was in the vicinity of the book store (but outside) for approximately twenty of those thirty minutes.....
Law enforcement agents were able to detect a particular MAC address - MAC address A - at the time that Chapman was observed powering on her laptop computer.
Law enforcement agents were also able to determine that the electronic device associated with MAC address A created the ad hoc network.