Artikel 4

1. The Parties shall co-operate closely on the matters covered by this Convention and encourage similar co-operation as appropriate between national sports authorities involved.
2. In advance of international club and representative matches or tournaments, the Parties concerned shall invite their competent authorities, especially the sports organisations, to identify those matches at which violence or misbehaviour by spectators is to be feared. Where such a match is identified, the competent authorities of the host country shall arrange consultations between those concerned. Such consultations shall take place as soon as possible and should not be later than two weeks before the match is due to take place, and shall encompass arrangements, measures and precautions to be taken before, during, and after the match, including, where necessary, measures additional to those included in this Convention.