Captain Jack Harkness - S1-E12
Trivia: On the stair way of the abandoned building, someone has written 'Bad Wolf' on the wall - the phrase that appeared in most episodes of the first season of Doctor Who (2005).
Captain Jack Harkness - S1-E12
Trivia: The "Mister Saxon" references from series 3 of Doctor Who spill into its spin off series in this episode, as a "Vote Saxon" poster can be seen on the wall of the abandoned dance hall.
Answer: Several times during the episode, most notably at the beginning when the old grave is discovered, Tosh holds a devise that looks a great deal like the Sonic Screwdriver that she uses to determine the age of the skeleton. However, a search of Google images shows that it is not the same thing.
OneHappyHusky