In 2369, Captain Jean-Luc Picard ordered a metallurgical scan of the hull of the USS Enterprise-D to see if subspace field incursions by the solanogen-based lifeform had left a trace. (TNG: "Schisms" ) The same year, Dr. Julian Bashir ran a metallurgical analysis of one of Quark's holosuites for DNA or skin fragments, hoping to discover who Ibudan's murderer was. (DS9: "A Man Alone") In 2371, Kathryn Janeway suggested they do a metallurgical analysis of the 1936 Ford truck they located in open space. (VOY: "The 37's")