Poly - Relative with Conduct Concerns

Hello everyone. Wondering if anyone might have any insight.

I have a TS clearance (no poly) but I am in the process of switching jobs and will be going through the Poly process (I assume both CI/CT and lifestyle).

Approximately two years ago, my father was arrested (although I believe he was just given a citation rather than actually taken in to any police station) for soliciting a prostitute. I have not had to discuss this on any forms or in my initial investigation. (I currently work in the field, so I do know the specifics of what is required as far as that goes.)

I am wondering, though, if this will be a topic that comes up during any of the poly questioning. I have no issues being transparent about it, but I want to be prepared with the correct details and information if needed.

Hopefully someone here can advise.