Anyone hoping to meet private investigators in London would be wise to head down to the Fitzroy Tavern for a pint. Every two months on a Thursday, this traditional British pub hosts its very own private investigators' night for an evening of networking over a drink or two.

The so-called 'Second Thursday' event has become increasingly popular in London's corporate intelligence community, even drawing visitors from further away, some of whom have been known to plan their business trips to the UK around