Stalking listed among Musiker's court-martial offenses
Stalking was the act of following someone in a threatening manner without their consent. It was also a common practice used in tracking prey.
After hearing Tolian Soran speak negatively of time – calling it a predator that stalked one, always killing in the end – Jean-Luc Picard discussed Soran's sentiment with William T. Riker, saying he did not share that view. (Star Trek Generations)
In 2373, Q accused the Female Q of stalking him. (VOY: "The Q and the Grey")
In 2377, Deanna Troi, surprised to meet up with Reginald Barclay at the beach, scolded him for following her on vacation, as she deemed it inappropriate for a therapist's patient to do so. (VOY: "Inside Man")
A charge of stalking was a court martial offense in Starfleet. Following the Attack on Mars, Commander Raffi Musiker was court martialed for thirteen offenses, including stalking Vice Admiral Kathryn Janeway. The note remained on her personnel file through 2401. (PIC: "The Next Generation")