Our investigation has uncovered a "shocking" amount of violence.
From June 2012 through June 2013, patients committed 855 assaults – either patients assaulting patients or patients assaulting staff.
Hospital officials said they did not have detailed information on assaults prior to June 2012.
But despite the number of assaults, hospital officials have continually reduced the size and function of the hospital's security staff.
"Where there is security, it is possible to provide help," Wellek said. "Where there is not security, all you can do is cover your ass. That's not treatment. That's simply every man for himself."
The ABC15 Investigators have spoken to dozens of hospital insiders, both current and former employees.
They've told us stories that go far beyond what statistics show about the level of violence inside the hospital walls.
In the past six months alone, hospital staff have suffered: - Broken jaws - A broken arm - A broken ankle - One man nearly lost an eye - Multiple concussions
Last December, one woman, who worked as a psychologist, was beaten so badly she may never work again due to a permanent brain injury.
ABC15 is protecting the identities of staff who spoke to us, for fear of retaliation.
But one woman told us she quit after working at ASH for just four months.
She said it was a job she loved. But she no longer felt safe after a patient gave her a concussion and left her with cuts and bruises across her face.
"I was thinking ‘Oh my god I'm going to die,'" she said. "'I can't believe I'm being beaten up, this is what I heard about. This is what happens every day.'"
Another insider, who said she was assaulted several times during her time at ASH, said that the level of security is so low that staff sometimes use their patients for protection.
"There have been issues where I've had to go deal with somebody in a psychotic episode, and the other patients have had to come follow me and as they would say ‘get my back' because I'm by myself," she said.
Wellek said that's a serious problem.
"That is not a hospital environment. That is the street," he said. "It's just another addition of the street. The street has entered the hospital."
"It's anti-treatment. It's hurtful, and it's dangerous," Wellek said.
Hospital Officials Respond
To get answers, the ABC15 Investigators sat down with the hospital's former CEO Cory Nelson.
Nelson was promoted earlier this year and now oversees the state's behavioral health services.
"Actually I think the hospital is doing great," Nelson said.