darlie routier did take the stand. here is her testimony
http://www.justicefordarlie.net/transcripts/volumes/vol-44.php#2
although it is MUCH better to read the entire transcripts in order to realise how awful an idea it was for her to do
ETA: I think ICA has much more to lose by NOT taking the stand than darlie routier did
ETA again whoa I had completely forgotton that darlie also played the sex abuse card. this is IMO a very interesting read for anyone following ICA case.
fwiw darlie is on death row.