My grandad is a keen metal detectorist, visit his website at
http://www.jimhalliday.com. You cant go into any field to start detectoring as it is tresspassing if its on someone elses land. Thats why many people "nighthawk" - when a detectorist goes onto someone elses light on a night. Its illegal. You are allowed to keep what you find to a certain level. If its worth a lot it will be classed as treasure, therefore it will belong to the state. Sorry but these are all a bit blurred! Go to my grandad's website or email him at [Email address removed as per site policy. - AB Editor] for some accurate information!