A laser spanner was a device that the Tenth Doctor claimed to have owned when sarcastically questioned by Martha Jones about his sonic screwdriver, saying that it was stolen by Emmeline Pankhurst, a "cheeky woman." (TV: Smith and Jones) When investigating a cave with the Tenth Doctor, Martha asked why the sonic screwdriver didn't have a torch. He replied, "Because it's a sonic screwdriver, not a laser spanner." (PROSE: The Mystery of the Haunted Cottage)