Nice. Is she your favourite female character in the verse? :)
Yes and its not just because she is super attractive. Nami is actually kind, sensual, cunning, extremely sexy, sensible, empathetic fiercely loyal (second to Zoro), and wise.
Tashigi is my second favorite female of the series and her scene with Nami was phenomenal.
Nami doesn't want to trust her because the Marines are indeed responsible because of their powerlessness, corruption, and indifference. Its a great callback to what happened in Cocoyashi and it justifies her skepticism. Tashigi just bows with pure humility and empathy. Its the kind of scene that makes me wish Oda would give the marine captain more screen time. She really brings the best out of our main characters and vice versa.