"I do not underestimate the impact of these incidents on those people involved, but it is important to highlight that despite these recently reported carjackings, the likelihood of becoming a victim of this type of crime is slim, " she said.

BBC: 'Criminal gangs' involved in Belfast hijackings

N-trig's digitizers are easily integrated into existing technologies, support any type of LCD, and keep devices slim and light.

ENGADGET: N-trig's Digital Pencil plays pen and fingertip roles, claims mastery of both

Mr Pringle was described as about 5ft 9in, slim, with short dark hair and wearing a green camouflage-type jacket over fishing waders.

BBC: Michael Pringle