JANNOCK ACQUIRES 50 PCT OF INTERCON SECURITY <Jannock Ltd> said it acquired a 50 pct interest in Intercon Security Ltd for five mln dlrs and Intercon founders Brian Legge and Richard Grange will hold the remaining 50 pct and will continue to manage the company. Intercon Security, employing 850 people, provides a full range of security equipment and services, Jannock said.