When anyone in a position of authority--an employer, the police, a school administrator--advises you not to hire an attorney, it's time to hire an attorney. When they advise you not to hire an attorney because it will create a confrontational atmosphere, you should have hired one yesterday; you're being railroaded.
[T]he system has a word for a guy without a lawyer, and it's guilty.
There's a reason our system of jurisprudence is adversarial. Because, not unlike the class war the bottom four quintiles are so often in denial about, the powers that be are, in general, out to get you. That they ever say otherwise is just part of the game.
Put another way, never, EVER, trust anyone who says "Trust me."