No criminal activity has taken place in relation to the Javelin Park incinerator according to the police

Earlier this year Gloucestershire Police received a complaint alleging there had been misconduct in public office and the possible influencing of a local authority vote in 2015.

A spokeswoman for the force said: "Earlier this year Gloucestershire Constabulary received a complaint from a member of the public in relation to the Javelin Park incinerator project.

"To maintain complete independence we referred the matter to Wiltshire Police and following their enquiries they have concluded that no criminal offences have been committed.

"As a result there will be no further action regarding this complaint."

The large facility at Haresfield near junction 12 of the M5 could start burning the county’s waste from June 10.

In January, activists closed the roads outside the site and burned fake money at its main entrance. Campaigners have previously said there are cheaper, safer ways to dispose of waste in Gloucestershire.

Gloucestershire County Council insists it will save taxpayers £100 million over the next 25 years.

In December, it was revealed the incinerator will cost at least £102 million more than the £500 million expected when negotiations began five years ago.