FINA Relay Take-Off Rule w/ Automated Equip?

Beer bet. Does anyone have a link to the FINA rule that explains how automated equipment is used to judge relay take offs? The FINA rules I've been able to find on-line first point you to section SW 13.1, which then points you to FR 4. But FR 4 doesn't address it. I need the link to the explict FINA paragraph to win my beer. I already have the undocumented statement from the Washington Post April 1, 2007. "Officials ruled Crocker left 0.01 of a second earlier than the allowable start time. Crocker got off the blocks with a reaction time of -0.04 of a second. The most allowed is -0.03." Thanks