What is a "patrol vehicle"?

1. AA security vehicle used for patrols along the border and equipped with appropriate equipment for this.
2. BA public vehicle intended to carry up to eight passengers besides the driver, and noted in the vehicle licence as a patrol vehicle.
3. CA vehicle used as a security vehicle for frontier settlements and intended for patrolling along the settlement's fences.
4. DA vehicle used by the various security forces during their routine activity.

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