The Party in the Pants - S8-E22
Other mistake: The body falls from the excavator revealing there is no other debris in the excavator. However when the team get there they are told that the load in the bucket fell on the body, crushing the head. (00:03:15)
The Ghost in the Machine - S8-E9
Other mistake: Bones states she doesn't like to make assumptions in sex based on just the skull. However this is something she has done from the start. (00:01:10)
Answer: Answering my own question here but, having contacted various people involved in the production of Bones including Kathy Reichs, Hart Hanson, Eric Milligan, and Deirdre Lovegood who portrayed Taffet onscreen I finally have the answer. No-one know how she did it due to her constantly working alone. And she never revealed this information before her death.
Ssiscool ★