After leaving the British Army in 1988 with the rank of sergeant, Bruce worked in a private security capacity for the comedian
Jim Davidson, before taking the role of second in command of an undercover operation codenamed Project Lock, a
WWF sponsored anti-poaching operation in Southern Africa (1988–1990) led by SAS Founder
David Stirling and SAS Lieutenant-Colonel Ian Crooke. Operation Lock's primary purpose in Southern Africa was to track down dealers in
rhino horn and ivory. Linked to this was identifying their methods for illegal export, pinning corruption against those in high places who colluded with the dealers, and helping with the training and equipping of anti-poaching teams for endangered species in general and rhino in particular. Following Operation Lock, for two years Bruce worked in Washington, D.C. as bodyguard for Lebanese billionaire and former Prime Minister of Lebanon
Saad Hariri. The project was partially backed and funded by
NASA. As a part of it Bruce,
Harry Taylor and scientist and astronaut
Karl Gordon Henize, with an ascent team, climbed the North Ridge Route of
Mount Everest in late 1993 to test a NASA meter called a "tissue equivalent proportional counter" at different altitudes (17,000, 19,000 and 21,000 ft; 5,200 to 6,400 m), the device measuring the effects upon the human body of radiation at altitude, which would be factored in for consideration of space missions of a longer duration. Although the expedition was cut short, NASA received the information it had been sent out to acquire from the meter's readings logged during the ascent. In February 1994 Bruce had a
nervous breakdown whilst living in
Chamonix, France, where he without warning attempted to murder his girlfriend with a pair of scissors, stabbing her several times before being dragged off her by another man present. He was confined shortly afterwards by the local authorities to a psychiatric hospital. under the pseudonym 'Tom Read',
ghost written by
Michael Robotham. ==Death==