The cost of a major police operation around the secret Bilderberg Group conference will not be revealed by Herts Constabulary.
Roads have been closed off to traffic, householders are being asked to produce identification before being allowed into some streets and a no-fly zone has been enforced around the Grove Hotel in Watford.
The four-day secretive annual meeting, which has been held at locations across the world, sees top political leaders and experts from industry come together to discuss major issues facing the world.
Herts Constabulary spokesman Colin Connolly said: “We would not normally disclose the exact costs of such an event for operational reasons. In addition costs can be hard to evaluate, particularly prior to or during an operation.
“The organisers of the event are paying for a private security firm who will be providing security at the venue. In addition, the organisers have agreed to contribute towards policing costs relating to the event. As we do not disclose the costs of operations prior to their event, we will not disclose the amounts at this stage.
“Hertfordshire Constabulary will also be seeking funding from other sources to help cover the costs of policing. We are in discussion with the Home Office about other funding sources.”
Among the guests are the heads of Barclays, McKinsey & Company, BP, Goldman Sachs and HSBC, Google’s Eric Schmidt and Amazon’s Jeff Bezos.
Attending from the world of UK politics are Chancellor of the Exchequer George Osborne, Shadow Chancellor of the Exchequer Ed Balls, Cabinet Minister Kenneth Clarke and House of Lords independent member John Kerr.
The conference ends on Sunday.