It is arguable that the field of employment is one of the best in which to study the aspects of law and the legal process. One of the advantages of labour law, for those who acquire a measure of familiarity with it, is the ease with which its boundaries may be transcended. Few disciplines lend themselves so readily to contributions from the other social sciences. Indeed it is often the case that certain features of the law peculiar to the employment field cannot be effectively or meaningfully understood without an appreciation of their history, their economic rationale, their social effect and their political significance. Traditionally, labour law has been divided into individual and collective aspects, reflecting the fact that the master/servant relationship passed into legal form before trade unions were subjected to different legal concepts. It is one of the modern problems of labour law that its growth has led to its division into specialised fragments themselves of enormous size.