Friday, March 14, 2008

Day Four: DNA profiles and hyptoheticals

Several columns of blue show that several of the samples were a match for Officer Lindsey (this being the swabs of blood and brain matter found on the car).

Prosecution asks if there was DNA from any other person in those samples of what was found on side of car. Lester says "No."

Sammy Rivera's swab taken from his ear, along with the swabs taken from the Red Bull cans found in the car were taken to find a match with Sammy Rivera's DNA profile, and no one elses.

Lester says that Rivera is the major contributor of DNA on the Red Bull can, with one other person contributing to create a "mixture,' but a very small, trace amount of DNA.

Lester then shows "mixture profiles," which are present whenever there are multiple sources of DNA on a piece of evidence. She says DNA is not difficult to transfer.

Prosecution gives a hyptothetical, asking if having sat at the prosecution table for the past few days, would Lester have found a sample of DNA at the table. Lester says it's possible. Prosecution asks if his co-attorney's DNA would mix with his at the table, hypothetically. Lester says yes.

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