Arrid was turned by the borg at three years of age, and spent a total of 20 years as a borg drone. When found on a planets by the USS.Icarus, the ships doctor was able to revert him almost totally back to his human body. But 65% of his brain, and almost all internal systems are now mechanical. If any part is damaged him can simply remove and arm are leg. He also has primary and back up for all vital systems to keep his brain and organic organs alive. Because of his ability to look as a normal human, he was sent to the starfleet intell branch. After going threw all star fleet courses he was given the rank of ensign and assigned to DS5 as executive Intell Officer. With in one year he climbed to the rank of lt.jg.Then was promoted once again to full Lt.,after an attack on DS5 killing the chief intell officer.With the destruction of DS5 by a fleet of cloaked ships, was reasigned to section 7 with the rank of Lt.Commander.