ABC 4's Beth Hillyer tells why the technology is better than ever.
You can take a sledge hammer to it, even a blow torch.
"I was giving it everything I got," says one.
But this new bullet-proof glass won't budge. Experts even try to shoot their way through it.
This new technology by General Electric called 'Lexan' makes for amazingly strong windows.
"It's quite impressive; that's a very potent rifle round; this has absorbed all the energy of it," says Sheriff Lynn Nelson, Cache County.
The Cache County sheriff is installing it in his department and in the new Logan jail.
"I think our people would be very comfortable knowing this is between them and the bad guys," says Matt Bilodeau, Deputy Sheriff.
Not even a round from a high-powered sniper riflt can penetrate this polycarbonate.
One deputy wishes they had this kind of protection years ago. He was on duty in Wyoming when a gunman took revenge.
"In my case it was the worst scenario. Two officers were killed prior to intrusion and without this I think it would be a big mistake," says Herb Weston, Deputy Sheriff.