Want to throw this out there in case it is unclear, I am not in any way upset with the way anyone is playing your characters. Just playing out that Echo has a good relationship with the police force and an understanding past what she's seen on TV about how these things are supposed to play out and she feel she has the most to lose from her two new companions taking the lead on the interrogation. She may also still be a little salty from the results of the Hero Report so she may be trying to overcompensate.