 The Lord Advocate may also give a direction under this section by virtue of section 15(4) of the Crime (International Co-operation) Act 2003 or on a request being made to him by the Attorney-General of the Isle of Man, Jersey or Guernsey acting under corresponding legislation.Section 28 sets out special powers of investigation which are available when a direction has been made.A person nominated by the Lord Advocate may require the person under investigation, or anyone else who may have relevant information, to answer questions or furnish information or provide documents relevant to the investigation.