169_20 interference 20. Having examined all the material submitted to it, the Court has not found any fact or argument capable of persuading it to reach a different conclusion in the present case. Having regard to its case-law on the subject, the Court considers that in the instant case the interference with the applicants’ freedom of assembly was based on legal provisions which did not meet the Convention’s “quality of law” requirements, and was moreover not “necessary in a democratic society”.