I don't think we know that at all. I think the implication was that she was sending the same witness who was performing an "evaluation" of her at the jail, which would be a psych expert.
ETA: Also, I thought the reference was to a "witness," and the PI would not be testifying.
The minutes state:
1. She is to interview her "expert witness" on September 2.
2. Minutes indicate she will be calling only one expert witness. (& JM has a "list" of expert witnesses he will call) .
3. JM is to help ensure that her "private investigator " is given access to the crime scene by August 28, that date apparently requested by the defendant.
4. The "expert witness" will be doing a (single visit) evaluation of CMJA that will not result in a report.
Deductions: The PI and expert witness are not one and the same. The PI would not need to or be qualified to "evaluate" CMJA. The arrangements are different...a date set for an interview (explicitly the expert) and a date set to visit the crime scene (explicitly the PI).
It's suggestive, IMO, that she wants the PI to have access to the crime scene days before she meets with the expert. IMO the expert is NOT a psych expert per se if at all. An evaluation doesn't necessarily relate to general psych status.
Maybe she's relying on a DV expert to testify solely about how a DV victim would respond in the specific physical space of Travis' house after being attacked by Travis.