IMPROVEMENTS IN AND RELATING TO MARKING

摘要

The invention provides a marking system, markers and methods of use of such marking systems and markers which enable unique marking of articles and subsequent detection of that marking. In particular the invention provides a marking system, the marking system comprising a plurality of different DNA fragment types, each of the plurality of different DNA fragment types comprising a plurality of different length DNA fragments and a method in which a sample of the DNA fragment type is taken, amplified and analysed to determine the identity of the marker for an article.