According to anti-gunners, if you want to keep guns away from “sensitive places” all you have to do is post a sign declaring that location a gun-free zone. I don’t know if they really believe that signage is imbued with mystical properties of protection that will ward off any unauthorized firearms from being brought inside, but they seem convinced that’s the case.

In reality, of course, a “No Guns Allowed” sign offers just as much protection as any other piece of paper or plastic. Even when additional security measures are present, like magnetometers or even armed guards, labeling a particular location as “gun-free” doesn’t mean it’s actually going to be free of guns. Just ask the folks at the Bibb County Jail in Georgia.

The Bibb County Sheriff’s Office is investigating after they found a loaded gun hidden inside the jail Wednesday afternoon.

The sheriff’s office says an anonymous tip around 2 p.m. led to a jail-wide search for the weapon. The find came just days after the conclusion of a month-long manhunt for four escapees that prompted questions about jail security.

“We did find a firearm,” Sheriff David Davis confirmed Wednesday. “It had two rounds in it.”

Tucked behind a wall-mounted phone in a dayroom in the C wing, they found it.

“It’s a dayroom area that’s sort of adjacent. You have the cellblock area, and then you have a dayroom that’s just off from that that’s sort of attached to that particular block of 20 cells,” Davis explained.

It’s on the other side of the jail from where the October escape happened, Davis said. He says a search started immediately after the tip came in Wednesday.

“Jail staff immediately took action. The corrections CERT team, as well as the Sheriff’s Office SRT, the Special Response Team came in, searched the cellblock area,” Davis said.