It was constantly patrolled by armed "security police" in uniform.
The road is constantly patrolled and no one is allowed in that area.
The country was constantly patrolled by his companies, alert and spoiling for something to do.
He and 400 men had to cross the broad river, which was constantly patrolled by hostile natives.
Every inch of this coast is covered by radar and patrolled constantly.
From 1977 onward, the border was constantly patrolled and observation posts to monitor key points.
It was also constantly patrolled by air and ship, approaches monitored by just about every known surveillance system.
Through the Homeowners' Associations, residents also pay for the area to be constantly patrolled by armed guards.
Then the river could be patrolled constantly.
During the next 6 months, the Company patrolled constantly, patrols being rotated to allow them to rest and recuperate at the company base.