Laser

A laser was an artificial beam of light the photons of which moved in a single direction. Many lasers were harmless and used in some games (SJA: Warriors of Kudlak), but other lasers were used as deadly weapons. During their campaign to recruit warriors, the Uvodni utilised harmless laser weapons in their interactive laser-tag game Combat 3000. However, on board their ship, the Kudlak warriors carried deadly blaster rifles that fired a yellow laser burst.

Some weapons, such as Sontaran lasers, were called "lasers" despite travelling slower than light. (DW: The Sontaran Stratagem). Lasers could also be used for a defensive purpose, as when the Doctor, Donna and Jenny came across a grid of heat rays in one of the tunnels underneath Messaline. (DW: The Doctor's Daughter)

Examples of laser weapon use

 * The Cybermen were armed with a wrist-mounted laser blaster that fired a red blast. (DW: Rise of the Cybermen, The Age of Steel, The Pandorica Opens)
 * The Daleks used gunsticks which fired laser rays which could be modified into hand-held Tommy rifles. (DW: Evolution of the Daleks)
 * The parallel Torchwood developed laser weapons, which destroyed Cybermen and could blast through a Dalek's shield. (DW: Doomsday) These weapons were later upgraded, to the point that they could destroy Daleks in one shot. (DW: The Stolen Earth)
 * Jack Harkness had a compact laser delux. (DW: Bad Wolf)
 * Jack Harkness used components from a pair of androids to build a high-powered energy weapon out of a defabricator. (DW: Bad Wolf)
 * The Sontarans utilised laser rifles during their Invasion attempt. (DW: The Poison Sky)
 * The Judoon carried hand-held blaster pistols which fired a red disintegrator beam. (DW: Smith and Jones)
 * The Toclafane had laser blasters built in to their casings. (DW: The Sound of Drums)
 * On the planet Griffoth, the Graske were armed with tiny laser pistols which fired purple blasts to combat intruders. (DW: Attack of the Graske)
 * Sontaran batons fired a laser that could cripple their victims. (DW: The Poison Sky)
 * Chantho used a laser pistol to shoot the Master. (DW: Utopia)
 * Eva Saint Julienne used a laser pistol to shoot the Jagrafess. (DW: The Long Game)
 * Novice Hame carried a laser gun for protection when searching for the Doctor. (DW: Gridlock)
 * The Master had a laser screwdriver, capable of killing. (DW The Sound of Drums, Last of the Time Lords)
 * The Slitheen-Blathereen family used braclets which fired orange lasers. (SJA: The Gift)
 * The Merons carried a trident-shaped weapon which shot 3 green beams. (K9TV: Liberation)
 * The Korven had a laser weapon on their palms. (K9TV: The Korven)
 * Ahab made use of a laser lasso. (K9TV: The Bounty Hunter)
 * CCPCs were armed with a palm-mounted laser blaster that fired a red beam. (K9TV: Aeolian)