Born into a family of privateers and smugglers, Braht inherited charge of a flotilla of small raiding ships at an early age after altercations with a vulcan trading vessel, which resulted in the death of his father.
Spurred to deeds of wild treachery by the stupidity of youth, he was sentenced to life for the slaughter of a community of monks on a deep space station.
Having served 5 years of his sentence fighting the sytem he was converted to the Elim brotherhood by a survivor of his earlier assault.
His ways changed, and he determined to make the most of his life and began to study, achieving degrees in Biology, Xenobiology and a doctorate in Botany.
After hearing the call for flight trained scientific staff ready to engage in the struggle with the Dominion Braht requested permission to be paroled to starfleet, and recieved his commision as Botanics officer, rank ensign.
 

Braht's psyche evaluation considered him a stable case, his previous psychotic tendencies having been dealt with in intense counselling sessions at the Norek correctional facility. His loathing of vulcans is checked by his religious observance, and his character is strangely calm for a klingon.