rebluing
n.— «The police force has since undergone reform in a process called “Re-Bluing”—a term derived from the process of refurbishing a gun barrel and also from the color of the force’s new digitalized-patterned blue uniforms.» —“U.S. forces hand off to Iraqi police” by Richard Tomkins Washington Times (Washington, D.C.) Jan/ 1, 2009. (source: Double-Tongued Dictionary)