The Council shall promote cooperation through Europol and shall in particular, within a period of five years after the date of entry into force of the Treaty of Amsterdam: (a) enable Europol to facilitate and support the preparation, and to encourage the coordination and carrying out, of specific investigative actions by the competent authorities of the Member States, including operational actions of joint teams comprising representatives of Europol in a support capacity; (b) adopt measures allowing Europol to ask the competent authorities of the Member States to conduct and coordinate their investigations in specific cases and to develop specific expertise which may be put at the disposal of Member States to assist them in investigating cases of organised crime ...