Thanks Jim, I can put together a form, but had thought if such a form was common practice then there would be one on the site. Perhaps it is not common practice..
mobylad,
Your "form" should reflect your organization's selection criteria for consultants (see 7.4.1).
Ask the stakeholders of these services and you may determine the criteria used to select your consultants.
You may find that these criteria change according to the type or nature of planned consulting work.
Someone else's form probably would not work for you.
As dsanabria has advised, best to ask for references and to have your own questions ready for the interview.
John