By Mark Trevelyan, Security Correspondent

MALVERN, England (Reuters) - The "suicide bomber" clips a shrapnel-filled belt around his waist and buttons up his jacket to conceal it.

As he turns back and forth in front of a semi-circular white panel, about the size of a shower cubicle, a computer monitor shows the metal-packed cylinders standing out clearly in white against his body.

British Firm Breaks Ground in Surveillance Science, continued