Right. If we're investigating this internally, I'll do whatever I can to help.

[She says it as if reporting to a superior - which she's not sure whether or not this man is, but since she just got here, it's easy to assume everybody is superior.]

The Quarian Migrant Fleet. If there was a murder on a quarian ship, military police from another ship would handle the whole investigation. Even the marines on board wouldn't handle it.

[The extra information - the stuff he didn't ask for - is mostly just Tali filling in the silence with talk. It's her dealing with the nerves.]