28.This section replaces subsections (3) to (6) of section 1 of the 1990 Act, and there are no material changes. Where the process served requires a person to appear as a party or witness, the process must be accompanied by a notice stating that no obligation under UK law to comply with the process is imposed, but that the person may wish to take advice on failure to comply under the laws of the overseas country, and that the person may not be accorded the same rights and privileges as he would be in the UK. Where a chief officer of police causes process to be served under section 1, that officer must inform the Secretary of State (or the Lord Advocate) when and how it was served and (if possible) provide a signed receipt: where the process cannot be served, the officer must inform the Secretary of State (or the Lord Advocate) of the reason for this.