Article 13U.K.Effective investigations and cooperation
1.Member States shall take the necessary measures to ensure that investigative tools, such as those which are used in countering organised crime or in other serious crime cases, are effective, proportionate to the crime committed and available to the persons, units or services responsible for investigating or prosecuting the offences referred to in Articles 3 to 8.
2.Member States shall take the necessary measures to ensure that, where national law obliges natural and legal persons to submit information regarding offences referred to in Articles 3 to 8, such information reaches the authorities investigating or prosecuting those offences without undue delay.