patrol
verb (used without object)
(of a police officer, soldier, etc.) to pass along a road, beat, etc., or around or through a specified area in order to maintain order and security.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“Here I am patrolling Union Station looking for best-seller authors and I find you.”
From New York Times ● Apr. 24, 2014