The article describes the innovatory research methods on economic and social sources of law. The methods assume that it is possible to identify sources of law by discover all the elements of the bigger occurrences: patterns of human activity, like formal and informal sanctions; by describing the nature of the interrelationships between the individual elements, the catalogue of costs and pay-offs, the possible activity variants, as well as the basic types of external relationships pertaining to the pattern. This would be reminiscent, to some degree, of an analysis of individual institutions in economy or sociology. This types of research require the use of various instruments: economics (mainly based on institutional economic theories), law (i.e. a knowledge of the dogmas of individual branches of the law, depending on the reason for using the pattern in the case of 'micro' research and the theory and sociology of law - in the case of 'macro' research), sociology (mainly social interaction, social control, the structure of social groups and the sociology of social changes) and psychology (mainly the psychology of motivation, economic psychology and the psychology of social processes). Additionally, it would be useful to have access to the findings in the area of political science, history and socio-biology that are relevant to this research. Each research project would, consequently, be of an interdisciplinary nature and would require the cooperation of experts representing a number of key areas. Second part of the article describes details of given part of research with some practical examples.
