WASHINGTON — Police shows on TV are filled with high-speed car chases and crimes solved in a matter of minutes. But that’s not a typical day for a real-life police officer. To get a more accurate picture, head to the new National Law Enforcement Museum in Washington, D.C. Interactive exhibits there invite visitors to use their senses of sight, hearing, touch and smell in gathering information the way police, detectives and forensic scientists do. Explore how footprints and DNA, or genetic material, help solve crimes.