High-profile attorney Kenneth Thompson of Thompson Wigdor has laid the groundwork to run for Brooklyn district attorney, challenging Democrat Charles Hynes, who has held the post for 23 years. Thompson, 46, whose clients include Nafissatou Diallo, the maid who claims she was sexually assaulted by Dominique Strauss-Kahn, former head of the International Monetary Fund, said he plans to run in the 2013 D.A.’s race because “the people of Brooklyn deserve a choice.”

Thompson, a Democrat making his first run at public office, would be waging a primary challenge against Hynes. “I care about Brooklyn. If I had the honor to serve as Brooklyn district attorney, I would seek to take the office to a higher level,” said Thompson, noting, for example, that the reduction of gun violence is “a very important issue.”

Thompson’s entrance into the race boost the field so far to three candidates. Former Manhattan Assistant District Attorney Abraham George, 34, is also challenging Hynes’ bid for another term. Thompson was once an Eastern District assistant U.S. attorney, where he obtained the conviction of one of the New York City police officers who beat and tortured Haitian immigrant Abner Louima in a high-profile case. Another officer pleaded guilty during trial. George worked eight years with the Manhattan District Attorney’s Office before resigning to concentrate on the race (NYLJ, July 6).

Hynes, 77, was first elected in 1989 and ran unopposed in his 2009 reelection bid. A Hynes spokesman confirmed that the D.A. will seek another term but declined to further comment.