—le recours aux mesures visées au paragraphe 3 pour faire cesser ou interdire l'infraction intracommunautaire sera vraisemblablement au moins aussi efficace qu'une action de l'autorité requise,
—use of the measures in paragraph 3 is likely to bring about the cessation or prohibition of the intra-Community infringement in at least equally efficient and effective a way as action by the requested authority,