Player Under Pressure - S3-E11
Trivia: This episode's airing was postponed for almost a year following the Virginia Tech massacre. Coincidentally, a similar event happened to David Boreanaz almost exactly eight years earlier when the "Buffy the Vampire Slayer" episode "Earshot" was postponed following the Columbine school massacre.
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 ★