The standard issue firearm for Judges in Dredd's world is a large handgun called the Lawgiver which is capable of semiautomatic and fully automatic fire. In the 2000 AD comic strip, there have been two models of the Lawgiver, the smaller Mark I and the larger Mark II. The gun's defining feature is its ability to fire multiple different kinds of ammunition, as chosen by the gun's user. In the comics, there are typically six types of fire available: (1) Standard: typical handgun ammunition, (2) Ricochet: bullets coated in rubber, allowing them to bounce off of walls and hit targets from the side or behind, (3) Heat-seeker: bullets that lock on to a target and pursue it around corners and obstacles, (4) High-ex: bullets containing small but potent explosive charges, (5) Incendiary: bullets that ignite and burn their target, and (6) Armor-piecing: dense, heavy-duty bullets for armored or robotic targets. Later stories have added various extra bullet types, including a stun gun feature, tear gas rounds, "Exorcist Bullets" designed for supernatural foes, and electronic tracker rounds. The ammunition type is selected via a dial on the side of the gun. The grip of the Lawgiver contains a palm-print scanner that allows the owner of the gun to fire it, but causes the gun to self-destruct if anyone else tries to use it.
In the 1995 film Judge Dredd, the Lawgiver is based on the Mark II from the comics, with some changes. The rounds this version can fire are: (1) Standard, (2) Armor-piercing, (3) Grenade: similar to the high-ex from the comics, (4) Flare: mainly used as a standard flare gun but also used like the Incendiary bullets from the comics, (5) Double-whammy: fires two standard bullets at diagonal angles to hit multiple targets. The film version of the Lawgiver is voice-controlled, allows rapid-fire, and rather than exploding when used by someone unauthorized, it lethally electrocutes the intruder. It also tags each round with the user's DNA, so the killer of each target can be identified. The Lawgiver from the 2012 film Dredd is very similar in function to the one in the 1995 film. It too is based on the Mark II design, and it is also voice-controlled. It fires the following types of rounds: (1) Full Metal Jacket: the new standard bullet, (2) Incendiary: a round that causes a large fiery explosion, (3) Hotshot: a round that ignites the target like the Incendiary from the comic, (4) Armor-piercing, (5) Stun, (6) High-explosive, called High-Ex. This lawgiver has a screen on the side of it displaying the current type of ammunition and how many rounds remain, a rapid-fire option, and its grip has a DNA reader that causes the gun to explode if anyone but the user attempts to fire it.