Bat work may involve visits to sites that are potentially dangerous, particularly for those who have received inadequate or insufficient training and are unaware of the correct safety measures. It cannot be emphasised too strongly that safety is of paramount importance in all situations. No site or colony is worth taking risks over, so if in doubt abort the visit. Always ask yourself whether you could get the information you need without entering a hazardous area. Risk assessment plays an important part in ensuring that bat group members operate in a safety-conscious way and bat groups can help by ensuring that safety procedures are discussed and reviewed regularly. Appendix 8 includes sample risk assessments for entry into buildings and disused mines. Employers should be aware that bat work is covered by Health and Safety legislation. A summary of the main requirements can be found in Appendix 8, including relevant references.