Often my work requires me to separate fact from speculation. It requires me to be a zealous advocate for the real people entrusted to my care. Sometimes I need to suppress evidence and argue that seemingly "incriminating" evidence is not incriminating at all. But lying is not part of that job description. Rather, out of respect for the law, the court, the prosecutor, and my client . . . my integrity and my honesty . . . are everything.
So the Rule is never lie, to anyone, ever. We might need to parse our words as defense lawyers. But make sure those parsed words are still the truth. The lives of others depend upon it.