Some professionals practice and then they don't. All judges in the State of Washington are lawyers. Part-time judges may continue to practice law, that is, to be in private practice, so long as it does not conflict with their judicial duties. I am a part-time judge but do not use the other part of my time as a lawyer, but rather as a priest, thus, when people ask, I say that "I do not practice law." This is fully understood but carries with it the sense that a judge, 'tho a lawyer doing lawyerly things on the bench, is NOT practicing law when judging. Odd.