Workplaces with more than ten employees, as well as all factories, are required by law to have an accident book in which employees, or others acting on their behalf, can record details about accidents and work-related illnesses. Entries serve as formal notice to the employer, who may enter his own if he believes the employee’s entry is incorrect. The entries could be used in future claims against the employer. The most recent Accident Book (published by the HSE) complies with the Data Protection Act of 1998. Accidents are recorded, but information about the individuals involved is kept separately and securely.