Black Judges Becoming A Force in U.S. Justice
NY Times survey examines impact of increasing number of black judges on US legal system; focuses on Detroit Judge George Crockett Jr, 1 of 325 black US judges; suggests that black judges are making particular efforts to apply law more evenly to all races and econ groups and that their presence in cts leads black citizens to have more confidence in fairness of legal system; views of Judges Bruce McM Wright, Geraldine Bledsoe Ford, Damon J Keith, Wade H McCree, John R Murphy, Thomas R Jones, Sherman W Smith and Israel Augustine also noted; Judge Crockett illus (L)