PLEASE NOTE: EDIT CONTAINS CONVERTED 4:3 MATERIAL<br/> <br />It's emerged the captain of the wrecked Costa Concordia has tested negative for drug and alcohol abuse.<br/> <br />Francesco Schettino's been arrested on charges of multiple manslaughter after the cruise ship ran aground near the Italian island of Giglio last month.<br/> <br />At least 17 people lost their lives. Others are still missing.<br/> <br />But the consumers' association Codacons which has launched legal action against the ship's owners on behalf of the passengers, is questioning the reliability of the tests.<br/> <br />It says signs of tranquilisers which Schettino himself said he was taking before the accident have failed to show.<br/> <br />The tests did show unexplained traces of cocaine on Schettino's hair, but did not reveal any of the by-products in his hair follicles which normally show up in someone using the drug.<br/> <br />The scientist in charge of the tests, asked about the cocaine traces, said there had been a marginal problem which did not undermine the results of the analysis.<br/> <br />Paul Chapman, Reuters
