The Confiscation Field is a Combine device seen several times in the Citadel. A small room with two entrances to be closed by a Force Field and a high ceiling, it is equipped with four weapon strippers that confiscate and destroy unregistered weapons. During the process, any object or being inside the room will not be subject to Earth's gravity.
The first time, Gordon Freeman is stripped from all his weapons save the Gravity Gun, which is transformed into the Dark Energy Field Manipulator, that can carry heavier objects, kill enemies with one blast and manipulate organic matter. The HEV Suit also undergoes changes, turning into a more powerful suit that can carry more power from Power Chargers, reaching 200 power points and doubling the capacity of the Chargers. Another device is located near the entrance of Breen's office, and is used to take the modified Gravity Gun from Gordon to Mossman.
Half-Life 2: Episode One
At the start of the game the Gravity Gun is back to normal. When Gordon and Alyx go back into the Citadel they go through two other Confiscation Fields, first a broken one, then a second working Field that transforms the Gravity Gun again. When Gordon and Alyx are about to leave, this is, after the Citadel's energy-based devices are "disturbed" after Alyx stabilized the Citadel Core, the gravity gun returns to normal.
- The model used in the Confiscation Field, named "weaponstripper.mdl", is also used in the Energy Orb-powered horizontal generators and pod cleaners.
- In Episode One, if player uses the cheat "impulse 101" and enter the Confiscation Field, the weapon will simply be dropped instead of floating like in Half-Life 2, and the weapon will simply pass through the Force Field if the player is facing these fields.
- There is a glitch in Half Life 2 that allows the player to use their weapons after the Confiscation Field scene. There are 3 methods. The first can be used if people do not have access to console commands. First, the second the player is dropped from the Combine Cell, they have to sprint toward the forcefield and wait for the Overwatch Soldiers with their MP7s show up, then, use a weapon of your choice to kill the soldiers. Then, let your weapons get confiscated. Then pick up the MP7 and the now-supercharged Gravity Gun. The second method requires you to be fast. When you are dropped into the field, run to the force field like you do in Method 1. Then, when the field activates, take a small step away from the confiscation field and immediatly start pressing the use key (or X on Xbox or Xbox 360) to collect your weapons. The final and most easiest method is for if you have access to console commands. When you get to confiscation field, don't run to the end of the field, instead, stay where you are. Then, let your weapons get confiscated. Finally, pick the gravity gun, open the console commands, and type in impulse 101.