A ribbon-cutting was held Friday at Detroit's new $600 million public safety headquarters.
Mayor Dave Bing led the morning ceremony morning at the site on the western outskirts of downtown.
"This building is a key component in transforming Detroit into a more efficient and safe city," said Mayor Bing.
The building once was the temporary home of the MGM Grand Casino.
It will house city police and fire operations, as well as Information Technology Services and Detroit's Homeland Security and Emergency Management office.
"I am excited about being co-located with my public safety partners. It's going to improve our effectiveness, our efficiencies, and working collaboratively together to provide the best public safety," said Detroit Fire Commissioner Donald Austin.
The project was paid through bonds. The mayor says bringing all the departments under one roof will save the city millions.
"This is evidence that we are coming back as a city. The men and women of the city of Detroit who are out there as first responders, they've got something to look at with pride," said Detroit Police Chief Chester Logan.
The old police headquarters has been plagued by falling plaster, lead-based paint, frequent plumbing leaks and vermin.
The move-in process is still underway at the new building. Everyone should be in the new location in the next two weeks.