DCTA Laser Firearms Protocol
The holodisk containing this manual is located in Farragut West station, in the DCTA Service Office directly opposite the locked chainlink gate with ghouls and generators behind it. More precisely, it's located inside a safe behind the MDCTA Service Access Terminal, together with a laser pistol.
Judging by the placement of the location (this would be the first place where the player can find one if they follow James to Galaxy News Radio right away) and the wording, this protocol is likely intended as a quasi-tutorial, introducing the player to the laser's ability to ignite gas leaks and trigger explosions.
Congratulations on receiving your new DCTA Standard-Issue Laser Pistol!
Please take a few minutes to go over the guidelines posted in the DCTA Employee Handbook; Section 28.1.1.b, and reprinted below for your convenience.
Section 28.1.1.b - Proper Laser Pistol Usage
It should be noted that all DCTA property should be handled with the utmost care, and used only when necessary. Maintaining personal safety during a Communist attack is a good example of proper usage of your standard issue laser pistol. However, rodent population control is an inappropriate use and subject to disciplinary action, as noted in Section 11.3.5.c
Section 28.1.1.b.1 - Maintaining Safe Conditions With the Laser Pistol
Using this laser pistol in the DCTA Metro facility can be beneficial in many ways, but the operator must observe his or her surroundings before deciding to fire. The subway utility pipes often serve as conduit to transport highly flammable gasses. Firing the laser pistol in the presence of a gas leak could cause an undesired explosion and/or severe personal injury.
Section 28.1.1.b.2 - Operating the Laser Pistol Within Proper Specifications
It is required that all DCTA Employees keep the laser pistol pulse energy, length and repetition rate within the specifications diagrammed in the Laser Pistol User's Manual. Failure to do so could result in severe reprimands from the DCTA Regulatory Committee as well as serious personal injury.