For a reason - because there is a method that needs to be followed.I wrote about this a couple of years ago, at: <a href="http://redstarfilms.blogspot.com/2010/08/field-research-101-interviewing.htmlit">http://redstarfilms.blogspot.com/2010/08/field-research-101-interviewing.htmlit</a> is all fine to say that witness testimony means something, because it absolutely does.