My daughter is a forensic chemist. She testifies in court when needed. So from what I understand, this guy is just the 'collector,' and onsite testing. HE can only testify to what HE found and did.
The forensic person who evaluates the stuff sent to the labs, etc., will testify to the findings and HOW they came to their conclusion.
Oh, and my daughter's lab, has a separate department, just for researching and analyzing the prints, ie hand prints evidence. Each technician has their specialty.
JMHO
fran
Yes, Fran, you are exactly right.
The state experts will come in later !
They are just bringing it in now, c o c, I think.
Your daughter has a very interesting job !!