The sting was uncovered by a private security company, which has produced a report that lifts the lid on the murky world of corporate espionage.

Of course, corporate espionage can be conducted without going to the trouble of recruiting agents in the field.

That he continued to work in the murky world of private security after leaving the police raises questions about the scale of corporate espionage.

The claims in this case are not of highlevel, sophisticated corporate espionage.

Companies engaging in what elsewhere might be regarded as normal market intelligence activities could step over an invisible line into corporate espionage.