The Police Stockade shares its body design with the Securicar and the Enforcer (based on the International 4700 Series armored van), and is equipped with a light bar and siren, which, oddly, flash red and blue, against LCPD code, as Police Cruisers and Patrols carry red and white lights, just like NYPD code. As with most Police Vehicles, the player can access the Police Computer from the Police Stockade. The Stockade has extra windows and comes with custom LCPD inmate transport livery. The rear axle of this vehicle is also unique as compared to most of the heavy vehicles in GTA IV, as instead of having double wheel for each side of the rear axle, this vehicle has only one wheel for each side of the rear axle which is uncommon for most of the heavy vehicles. This vehicle does not power with air-brake but instead, it powers with disc/disk-brake and/or drum brake.
The Stockade makes two prominent appearances in GTA IV: first, in the mission "Tunnel of Death", where it is used to transport Aiden O'Malley from the Varsity Heights Police Department to Alderney State Correctional Facility, and second, in the mission "Three Leaf Clover", where it is used to transport NOOSE agents to the Bank of Liberty.
- Police Stockades can spawn around Alderney State Correctional Facility, although this is a rare occurrence.
- The Stockade can be stolen and taken to a safehouse in the mission in "Tunnel of Death", but cannot be readily stolen in "Three Leaf Clover" — the player must push the Stockade to a safehouse with another vehicle if they wish to acquire it via this mission. And for the Tunnel of Death method; if you want to steal the van without failing, push it to the Alderney Safehouse with the Presidente, and then proceed to complete the mission, otherwise you can just kill Packie after the tunnel cutscene and steal it.
- An alternate variation of the Tunnel of Death method, a bit complex, is that the player, instead of heading to the drop off point, must head to Port Tudor and take a Phantom, careful to not leave the van far away and not attract police attention. Then, both vehicles must reach the drop off point as normal, pushing it with the truck. Once the player takes control of the Presidente, the player have to push the Stockade with that car and, once is free, continues the method with the truck, pushing both vehicles. After the Stockade has been pushed to the Alderney Safehouse's parking space, the player can continue the mission as normal. Note that this method is purely optional, unless the player can't find a truck on the streets.
- The Stockade can also be seen during GTA IV's Multiplayer "Team Mafiya Work" mode, when Kenny Petrovic tasks the players with killing Sergey — Sergey is being transported in a Police Stockade, which can be obtained by killing the driver through the side window, or by damaging it enough to force its occupants out.
- If the player has stored one in a parking space, sometimes a cop will target a pedestrian and the pedestrian will get in the back of the van and a cop will get in the front and drive off.
- If the player gets an NPC to attack them with fists, the cops will arrest the NPC and will go into the back of van, and if the player gets in before the cop, they can "kidnap" the NPC. This can also be done with any police vehicle.
- On the doors of the Police Stockade, one can read the numbers KSC-303. This is a reference to the protagonist of the Japanese zombie action film "Versus" known as Prisoner KSC2-303.
- Despite not appearing in TBoGT, it is still seen in the Weazel News special report.