First off it has to have been a jedi to do it, and a known 1 at that. GL has a tendency to NOT introduce wild cards, an example being luke discovering his sister is leia. I mean she is the only female character in the movie, so whe Kenobi says luke has a sister, the logical choice is leia. Also, there is no reason for this to be a treachourous act, though it most likely is, since we know the result of it. But it is only really Palpatine and probably Dooku who know the whole plan, though Palps might want to get rid of Dooku himself, because A) he finds out Dooku is playing both sides, as Dooku does tell Obi-Wan the truth about Palps and to me does seem to want to help him, until Kenobi got nasty. B) Wants Anakin at his side, as he is already starting to control Anakin and Anakin should be stronger. It could be Anakin, because Palps has asked him to, saying we need this army to stay secret, for the Republics benefit, which is the only reason I see Mace Windu doing it, as it benefits the Republic, though i dont really see him doing it. Also we DONT know when the K-File was erased or when Dooku was under dark side influence, which is why I VOTED THAT DOOKU DID IT