The Fond du Lac County Sheriff's Department says it has become the nation's first law enforcement agency to buy a $220,000 Oshkosh Corp. tactical vehicle that's based on a military truck used in the mountains of Afghanistan.

The truck, which has an armored body and bulletproof windows, is designed for urban settings as well as off-road use, according to Oshkosh Corp., which has sought new markets for tactical vehicles as the war has ended in Iraq and winds down in Afghanistan.

Called a Tactical Protector Vehicle, it is slightly smaller than a Humvee but has a body capable of stopping armor-piercing bullets. Blast protection from roadside bombs is available as an option.

The truck is modeled after the SandCat, an Oshkosh troop carrier with a V-shaped, blast-dispersing bottom built on a Ford truck chassis.

The SandCat is beefier than a Humvee because of its armor, yet it's not much wider or longer. It has been used by the U.S. military in off-road terrain in Afghanistan, including steep mountain trails that bigger vehicles can't climb.

The Tactical Protector Vehicle can carry nine passengers and is about 8 feet tall and nearly 17 feet in length. It has a 362-horsepower V-10 engine, can reach speeds up to 75 mph, and can run on flat tires....