Introduction to Law

Figure2.2indicates what the sources of law are, both in the common law
tradition and in the civil law tradition. Validity sources are outlined in the circles.
The rectangular box lists the sources of origin that are not, at the same time, validity
sources.

Recommended Literature

Hart HLA (2012) The concept of law, 3rd edn. Oxford University Press, Oxford
Raz J (2009) Legal positivism and the sources of law. In: Raz J (ed) The authority of law. Essays
on law and morality, 2nd edn. Clarendon, Oxford, pp 37–52

Common law Civil law

Customary law

Legal doctrine

Reason

Case law

Legislation

Treaties

Customary law

Legal doctrine

Reason

Case law

Legislation

Treaties

Fig. 2.2 Sources of law

36 J. Hage