Article 51 5.

without delay inform the competent authority of destination in the Union of the illegal shipment, after which that competent authority shall inform the competent authority of dispatch outside the Union;

ensure detention of the waste until the competent authority of dispatch outside the Union has decided otherwise and has communicated that decision in writing to the competent authority in the country of the customs office in which the waste is detained; and

without delay communicate the decision of the competent authority of dispatch referred to in (b) to the customs office of entry that discovered the illegal shipment.