private _jail = [[15938.8,20815.7,0],[15956,20815.1,0.00091362],[15945.4,20788.8,0.454655]];
{
    private _gate = nearestObject [_x,["Land_ConcreteWall_01_l_gate_F","Land_BackAlley_01_l_gate_F"]];
    _gate setVariable ["bis_disabled_Door_1",1,true];
    _gate animateSource ["Door_1_source",0];
    _gate setVariable ["locked",true,true];
} forEach _jail;