Metal detecting is increasingly being used alongside traditional methods of archaeological survey, especially as a means of assisting development-led surveys being undertaken on tight timescales. It is a popular hobby and several metal detecting groups in Scotland have considerable experience of working on archaeological and historical sites. However, like excavation, metal detecting is an invasive survey method and should only be considered after careful planning with due regard to relevant legislation, the specific nature of site you are working on and the metal detectorists you may choose to work with.
Historic Scotland has published a very useful guide to Metal Detecting in Scotland which you should read if you are thinking about using metal detectors in your survey. In particular, you should note that: