USS Executioner

The USS Executioner is a prison ship from an alternate timeline ruled by the United Dictatorship of Planets.

History
The Executioner began her service life as a small police frigate called the Atlantis, registered NCC-1408. While patrolling an area near the Skull Nebula, she was boarded by a ragtag gang of space thugs. Their leader killed her entire crew, and installed an airlock at the rear of the ship with which to dispose of them. Then he renamed the ship the Executioner, and converted her into a flying death row.

Systematic Execution
Each deck of this flying prison has its own means of execution, ranging from lethal injection to firing squads to "spacing"--exposing the victim to the vacuum of space by shooting them out the aft airlock. Another method of execution features gas chambers, which evoke memories of the Holocaust of the 20th Century. The victim is sealed in an airtight glass box, and toxic gases are pumped into it. These gases burn the victim from the inside, and the victim dissolves, meeting a slow and gruesome death.