A lab analysis of the lethal injection drug supply Arizona is relying on to resume executions provides no evidence of its efficacy or purity.

DPS troopers will monitor north and southbound traffic with more troopers concentrated in the Bumble Bee area, ADOT said.

ADOT and DPS increase trooper patrols on the I-17 corridor to enhance safety during ongoing road improvements.

PHOENIX — The Arizona Department of Transportation announced Monday that law enforcement will be increasing traffic enforcement along a 23-mile stretch of Interstate 17. Drivers traveling between Anthem Way and Sunset Point may soon start to notice more state troopers who will be looking to pull over reckless drivers along the freeway.

Starting Monday, drivers passing through the I-17 improvement project between Anthem Way and Sunset Point will see an increase in DPS troopers looking for people who are speeding or driving recklessly.

Arizona's Governor proposes increased funding for public safety, including pay raises for state troopers and investments in emergency response and drug interdiction.

Elijah Palmer, a minimum custody risk inmate, escaped early Saturday morning from the Whetstone Unit at the Arizona State Prison Complex in Tucson.

TUBA CITY, Ariz. — A deadly crash has restricted access to the southbound lanes of US 89 in northern Arizona. The Arizona Department of Public Safety said a two-vehicle collision was reported Friday morning near milepost 479, south of the Tuba City Airport. At least one fatality has been reported.

Arizona Attorney General Kris Mayes has joined 22 other Democratic state AGs to block a pause in federal aid put in place by the Trump administration.

Arizona Senate Republicans want to make sure state public safety agencies are cooperating with federal immigration authorities as raids and enforcement operations are underway in major U.S. cities.

With snow falling, a major highway northeast of the Valley remains closed after a semi-truck flipped over early Wednesday morning. According to DPS, two separate crashes caused full closures of SR 260 and SR 87 in the Payson area as crews responded.

A new bill introduced in the Arizona state House could mean that slow drivers face a new fine. Here's how much you'd have to pay and why.