Keir Starmer gives a presser

The transcript discusses widespread concerns about expenses claimed by some MPs and members of the House of Lords, leading to complaints of criminal conduct being filed with the Metropolitan Police. In response to these complaints, a panel was established on May 15, 2009, by the Commissioner of Match Point Police and Stevenson.

On what date did the Commissioner of Match Point Police take action?

What was the purpose of setting up a panel as mentioned in the text?