This is the Hidden Killers podcast with Tony Brewski and continuing coverage of the case against Karen Reid.

Thank you, Your Honor.

Good afternoon, ma'am.

Good afternoon.

Could you please introduce yourself to the jury and spell your last name for the court?

Certainly.

My name is Hannah Knowles.

My last name is spelled K-N-O-W-L-E-S.

And what is your occupation? I'm a forensic scientist at the Massachusetts State Police Crime Lab.

And prior to working at the lab, where did you go to school?

I have a Bachelor of Science from Simmons University in Boston and a Bachelor, I'm sorry, a

Master's of Science and Forensic Science from the George Washington University.

And how long have you worked at the State Police Lab?

Since October of 2006.

And in what capacity do you work there now?

I'm currently a forensic scientist four in the toxicology unit.

Now when you join the state police lab, what was your position and title that you were initially hired for?

It was initially hired as a chemist one in the drug identification or narcotics unit.

After about a year in that position, I was promoted to a chemist two position. After about a

year, there was a position available in the toxicology unit, so I applied for that available

position, transferred to the tox unit in about August of 2007,

and been in the toxicology unit ever since.

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