Drexel A. Sprecher, a lawyer who researched, plotted strategy and argued cases at the Nuremberg trials of Nazi war criminals, including presenting the case that convicted the head of the Hitler Youth movement, died on March 18 in Washington. He was 92 and a resident of Chevy Chase, Md.

Belle Zeck, another Nuremberg prosecutor, died the same day as Mr. Sprecher. Benjamin B. Ferencz, who was also a Nuremberg prosecutor and roomed with Mr. Sprecher, said only about a half dozen of their number were alive.

Mr. Sprecher was the only assistant prosecutor to present cases against two defendants at the first Nuremberg trial, in which a court created by the United States, the Soviet Union, Britain and France indicted 24 of the most important captured leaders of Nazi Germany.