Clone shock trooper/Legends

Clone shock troopers were the special forces clone troopers that formed the Coruscant Guard during the Clone Wars. Though a military force trained as shock troopers, they served on Coruscant and a few other select Core Worlds as police, bodyguards, and prison guards, and provided physical security for Republic government buildings. Within the Guard, some troopers were trained specifically for riot control.

Throughout the Clone Wars, the shock troopers were distinguished by red markings on their helmet and body armor since red was the color for Coruscant. This was carried over into the Imperial era when they became identified with an all-crimson body armor.

History
The shock troopers were members of the Coruscant Guard, a unit originally established to work with but not supplant the Coruscant Security Force and the Senate Guard. They were in charge of patrolling public plazas and guarding government buildings and landing platforms. Prior to the rise of the Galactic Empire, the clone shock troopers were the first armed force to be dubbed as "stormtroopers." This nickname would immediately become a title for all clone troopers upon the Republic's transformation into the Empire.

However their roles were expanded and they soon began to take on more of a police role. They had the authority to demand anyone to reveal their identification on the spot and perform other random security checks. During the time of the Empire, the Coruscant Guard became the primary law enforcement agency for Coruscant. The Guard became an elite Imperial stormtrooper unit yet separate from the stormtroopers who were assigned to CSF.

Equipment
As all clone troopers, they were armed with DC-15A blaster rifles, DC-15S blasters, and thermal detonators. They were also seen armed with missile launchers and Z-6 rotary blaster cannons during battle. All Terrain Recon Transports were also a popular vehicle used by this clone trooper division who utilized them in pacifying operations against unruly mobs.

Behind the scenes
While all canonically-seen shock troopers had red armor highlights, a promotional card for Official Pix sent with the 2006 Star Wars Hyperspace Fan Club membership kit depicted a shock trooper with blue paint instead of red, but otherwise identical in appearance. The possible canon of this color scheme, and of whether those who wore it were indeed part of the shock trooper corps, remains ambiguous.