Well, being fluent/conversational means you can still hear what words the translator chooses, and can verify it means what you meant. It's just that their word choice would be more precise.
It sounds like a bad idea all around.
I'm more concerned that the persecution, understanding how stressful the situation is for me and how not being a native speaker I wouldn't necessarily be familiar with legalese or very formal lexicon, uses it against me to extract a confession due to my confusion, than I am that the nuances would be lost through an interpreter.