Advice for metal detectorists
Metal detectors can be valuable archaeological tools when used responsibly. During archaeological excavations metal detectors are sometimes used to check the spoil for any objects missed. They can also often retrieve finds from disturbed plough-soil which might have otherwise simply rusted away. The code of practice for responsible metal-detecting in England and Wales outlines best practice for those using metal detectors, and has been fully endorsed by archaeological groups and national metal detecting bodies.
The following information may also be of help.