From the ACAS site, "Employees can ask for a copy of any reference sent to a new employer, the request should be in writing. The employer will need to consider if any exemptions apply before they can release the information. If a worker thinks a bad reference has been given they may be able to claim damages in a court, but the worker must be able to show that the information was misleading or inaccurate and that they have suffered a loss such as withdrawal of a job offer."