There are already groups all over the country who have these issues on their plates - but these specific things aren't likely to change. Polygraphs in and of themselves are useless without other cooborating evidence - whether in this type of case, or any other. There are WAY too many problems with them to ever think that they will be useful in court - there are hundreds of valid arguements based on research that make them only slightly more technically reliable than a ouji board. CVSA tests fare somewhat better, but aren't widely used yet and even they don't often get accepted into evidence. These tests are used more for things like pre-employment screening, where the stakes are much less than in a criminal case, and where the goal isn't so much to get an accurate reading, as it is to hopefully intimidate the test taker to give truthful answers (oversimplified, maybe).

Reliability of any witness, child or otherwise, involves a lot of issues, and must be evaluated on a case by case basis. Even professionals in the field can't agree on how to determine levels of influence, coaching, memory, perception, reliability, etc. - and until they can do so, they have no chance of convincing law makers to rely on something that even the "experts" can't agree on.

You can get some good info about the inherent problems by checking out the research of authors like Gail Goodman, Bette Bottoms, Maria Zaragoza, John Graham, Gordon Hall, and Stephen Ceci. Check Amazon or your favorite bookseller - you can probably find used copies of their publications pretty cheap (as they are academic and professional authors, their stuff tends to be a little technical and rather pricy, so definately go with a used copy!). Get familiar with the issues, problems, and challenges inherent in children's testimony and THEN decide how to move forward with a letter writing campaign.
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