Efforts to build a National Law Enforcement Museum in the nation’s capital got a boost last week when Motorola Inc. pledged $3 million in cash, products and services toward the project.

The proposed 90,000-square-foot museum — to be built on federal land across the street from the National Law Enforcement Officers Memorial in Judiciary Square — will be the first museum devoted to recognizing the contributions of law enforcement in the world and is expected to attract more than 500,000 visitors annually. It will include hands-on activities, interactive technology and a variety of rotating educational exhibits. Organizers also expect the museum, scheduled to open in 2009, to provide a forum for law enforcement discussions and to serve as a repository for research on law enforcement safety.

The National Law Enforcement Officers Memorial Fund, the nonprofit organization founded in 1984 to help commemorate the service of law enforcement officers, plans to raise $80 million for the museum’s construction. It currently is responsible for operating and maintaining the National Law Enforcement Officers Memorial.

“It has been said that the Memorial we’ve built to honor our fallen officers tells the end of the story; now, we must build the National Law Enforcement Museum to tell the rest of the story — a story of incredible service and sacrifice throughout our nation’s history,” Craig Floyd, the memorial fund’s chairman and executive director, said in a statement.

Legislation authorizing the memorial was signed into law by then-President Bill Clinton in November 2000.

— Bree Hocking