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If I Had a Hammer...
WriterDaniel Steck,
Allen MacDonald,
Corinne Marinan
DirectorBrad Tanenbaum
Original AirdateApril 23, 2009
Previous Episode: A Space Oddity
Next Episode: The Gone Dead Train

If I Had a Hammer... is the twenty-first episode in season nine of CSI: Crime Scene Investigation.


The crime lab re-investigates one of Catherine's earliest murder cases from the 1980s when the man who was found guilty motions for a retrial, claiming to have been wrongfully convicted.


Hodges This section is a stub and requires expanding


Main Cast

Guest Cast


  • When Riley types in the license number of the car into the Nevada State Police DMV database, she puts the car plate number into the driver's license field.
  • When Brass goes to Sabrina's house and Sabrina says the line "Can I help you?", Sabrina's hand goes from her hair to her side in between shots.
  • When Hodges holds the petri dish with the glass fragment in it out towards Catherine, the position of the petri dish in his hand changes positions in between shots
  • The tree in which the hammer is found is described as Quercus agrifolia and given the common name desert oak. Q. agrifolia is actually coast live oak and does not grow in Las Vegas. The tree shown in the show does not look like coast live oak.
  • After finding the hammer, they say that the tree grew around it and preserved the prints. However, this process would have taken months of years to occur. Until the hammer was encased by the tree it was exposed to bacteria, insects and all kinds of weather. This would have destroyed almost all traces of the fingerprints and made any kind of print match impossible. It would have also degraded any DNA in the blood and made any genetic match to the victim or suspect(s) impossible.
  • The blood on the piece of glass would have degraded after 18 years, making any kind of DNA match impossible.

See Also

CSI:Las Vegas Season 9
For WarrickThe Happy PlaceArt Imitates LifeLet It BleedLeave Out All The RestSay UncleWoulda, Coulda, ShouldaYoung Man with a Horn19 Down...One to GoThe Grave ShiftDisarmed and DangerousDeep Fried and Minty FreshMiscarriage of JusticeKill Me If You CanTurn, Turn, TurnNo Way OutMascaraThe Descent of ManA Space OddityIf I Had a Hammer...The Gone Dead TrainHog HeavenAll In