The security chief, also known as the chief of security, holds responsibility for the safety, protection and defence of the crew and others aboard a starship or starbase.

Prior to the Federation Starfleet, Earth's Starfleet called this position the armory officer. The term tactical officer was also used interchangeably. (ENT: "Singularity")

By the mid-23rd century, Federation starships and starbases used the term "security chief". On some ships, like the USS Enterprise (NCC-1701), the security chief did not hold a bridge officer's position. (TOS: "The Devil in the Dark")

Starfleet merged the security chief and chief tactical officer positions sometime in the 2270s. Sometimes, the helmsman or navigator would double up as tactical officer. (Star Trek: The Motion Picture, Star Trek V: The Final Frontier, Star Trek VI: The Undiscovered Country)

By the 24th century, Starfleet reconsidered the helmsman and navigator positions, combining them into a new position called the flight controller. They removed the tactical and security duties, giving these duties to a dedicated tactical officer, who normally holds a position as a bridge officer. (TNG: "Encounter at Farpoint")

In the 24th century, with helm and navigation consolidated in the new flight controller position, the chief tactical officer fulfilled the role of security chief (TNG: "Encounter at Farpoint").

On some starbases and space stations, the roles of security chief and tactical officer were separate. Odo was the security chief, but not tactical officer, aboard Deep Space 9. (DS9: "Emissary")

Notable Security ChiefsEdit

• Sebastian Coal
  • USS Crusader (2387-2388)
• Paul Cutty
  • USS Exeter (NCC-1706)
• Rey Drek
  • USS Federation (2386-2388)
  • USS Avenger (2389-)
• Eugen Jedrek
  • USS Artemis (NCC-71428)
• Jezra
  • USS Striker (2386-)
• Ulitania Jonar
  • USS Cantabrian (NCC-24705)
• Keung Lee
  • USS Independence (NX-90201)
• Garav Rimosi
  • USS Prometheus (NX-59650)
• George Serigos
  • USS Prospect (NCC-60056)
  • USS Prospect (NCC-60056-A)
• Anise Shelaas
  • USS Crusader (2389-)
• Michael Sinclair
  • USS Hathaway (NCC-2593)
• Stella (Romulan)
  • RIS Bouteina
• Teyla
  • Starbase 140 (2389-)
• Nikki Whitechapel
  • USS Aries (NCC-45167)
  • USS Swiftfire (NCC-76125-A)
• Yh'ahni
  • USS Cantabrian (NCC-24705)
  • USS Cantabrian (NCC-24705-A)

External linksEdit

• Security chief article at Memory Alpha, the canon Star Trek wiki.
• Security chief article at Memory Beta, the non-canon Star Trek wiki.