With just five days to go before Tuesday’s primary, roughly 200 lawyers turned out yesterday to hear the three Democrats vying to be the first new Manhattan district attorney in 35 years discuss how the office would change under their watch.

In a debate cosponsored by the New York City Bar and the New York Law Journal, Richard M. Aborn, Leslie Crocker Snyder, and Cyrus R. Vance Jr. all agreed that if elected to succeed District Attorney Robert M. Morgenthau, 90, who is set to retire at the end of the year, each would upgrade technology, liberalize pretrial discovery and focus on not only prosecuting, but preventing, crime.