NCR military police are equipped exclusively with cattle prods, and can see through disguises. Their jurisdiction includes internal affairs and intelligence, as well as guarding important NCR figure-heads. Lieutenant Carrie Boyd is a leading member of the NCR military police.
The NCR military police found guarding the NCR Embassy are marginally stronger than those patrolling the New Vegas Strip, and also are trained in unarmed combat. The military police at the embassy drop NCR dogtags when killed, unlike their counterparts. NCR MPs at Hoover Dam are marginally stronger than any of the other NCR military police presences, and are also equipped with combat knives rather than cattle prods.
A few of the NCR military police will either attack the Courier or make him/her give them 200 caps, depending on if you encounter them on the Strip or in the Wasteland. This only happens if the Courier has a bad reputation with the NCR. If the Courier kills them, he/she will still gain NCR infamy, along with turning other NCR soldiers and citizens around him/her hostile.
xbox360pc They may randomly became hostile to the courier when inside the NCR Embassy, despite having good NCR and good Strip Reputation. Killing them when they are hostile causes you to lose Strip reputation despite them attacking you first. This may be triggered by wearing an NCR disguise and using the monorail at Camp McCarran to gain access to the strip for the very first time (Unconfirmed). It could also be triggered by entering the strip by any means other than having 2000 caps therefore not making it a bug at all.(Mick and Ralph's passport, Monorail, etc.). A solution to this is to run into Vault 21 and kill them there, as you won't lose any Strip Fame, or the Securitrons won't attack you. [verified]
pc The base id might spawn cazadores occasionally. [verified]