The Las Vegas Night shift CSI's were sat around the big metal table in the break room of their lab discussing their latest case whilst eating their various meals. "We've been at this case for weeks and we still got nothin'" commented Nick Stokes in his Texan drawl. "We've got plenty . ." Gil Grissom responded ". . It's just we can't make it fit, there's something we're not seeing" "That's why I'm bringing in reinforcements" said Captain Jim Brass as he entered the doorway. "What do you mean 'reinforcements'" quizzed Sara Sidle. "I mean I'm bringing in the FBI Behavioural Analysis Unit" replied Brass. "I'm sorry the what?" asked a sceptical Catherine Willows. "The Behavioural Analysis Unit is a specialist team not unlike yourselves. They use that use behavioural sciences to assist in criminal investigations" Brass informed. "Behavioural sciences?" mocked Sara "You've got to be kidding me." "I don't know if you've noticed Sara but we're not getting very far on our own." Nick pointed out. "Yeah we could kinda use all the help we can get, don't ya think" said Warrick Brown backing up his friend. "Catherine?" Sara said, turning to her fellow female team member for support. "The boys are right, we're not getting anywhere on our own." Catherine answered. "Grissom you're not gonna let the FBI waltz in here and take over our case are you?" Sara panicked. "Look Sara, no one is taking over our case, but they're right none of the evidence we've collected so far have aided us in finding a viable suspect. We need a new approach" Grissom reasoned. "I cannot believe you are all so okay with this" Sara Whined. "All personal feelings are redundant in this matter, Martin Elliott a CEO at Sun Valley Health Insurance and his sectary Tracey White have both been reported missing. They fit the MO. The BAU are already on their way" Brass finalised as he turned backwards and walked through the door.