This all calls for tightening up of the definitions and principles of procedure related to ensuring security on the territory of the Union.

Thus the teaching of certain forms of knowledge has been regarded by some as intrinsically worthwhile; whilst others have regarded certain principles of procedure, such as enquiry-discovery learning, in much the same way.

Harmonisation and regulation of the principles of procedure in situations arising in a cross-border context will make it possible to refer to a single legal basis common to all Member States. Cases in point include road accidents, unfair competition, environmental damage, the treatment of foreign law and infringement of personal rights.