4. Recommends that Member States develop or further adapt, where necessary, their regulatory and operational control procedures to counter the diversion of chemical substances into illicit drug production or manufacture, and encourages authorities to initiate or further strengthen coordination and cooperation between all regulatory and enforcement services involved in precursor control;
4. 建议各会员国制定或酌情进一步调整监管和操作控制程序，制止化学物质转用于非法药物生产或制造，并鼓励各国当局在所有参与前体管制的监管和执法机构间开展或进一步加强协调与合作；