On a dark winter evening, a woman waits for a train on a deserted platform. A man arrives and sits right beside her, making her feel uncomfortable and unsafe. A new application of laser technology is being developed to spot this happening and determine when it is an innocent act - and when it is a threat. "Throughout my entire life the onus has always been on the woman to protect herself," says Rosie Richardson, a technology company product and strategy director. She is in the early stages of developing a tool to quickly identify behaviour like lurking and tailing, and direct help when it is needed. "I think we have to develop solutions that put the responsibility back into other places like public authorities, owners of spaces, police forces," she says. The tool is being developed by Createc in Cockermouth, Cumbria, but it is based on a system the company already uses to monitor crowds at airports and railway stations, including King's Cross in London.…