Once you download the form (COP24) from the Court of Protection website there are guidelines as to how you should fill it in, read that carefully first. The COP 24 is the witness statement that you use to support your application. If you want to provide material to support your statement, you need to attach them as 'Exhibits' and refer to them in your statement (ie Exhibit A, Exhibit B etc) - there is a helpline number if you have questions but you have to be quite patient as they can take a long time to answer.