INDIANAPOLIS - With Halloween just around the corner, haunted houses are open for business all across central Indiana.

State inspectors are making the rounds to ensure frightened haunted house attendees are never in any real danger.

"Our goal (is) the people who are in here need to be safe," said Marc Reynolds, with the Indiana Department of Homeland Security.

He walked RTV6 through the maze at Necropolis to show what he looks for.

Reynolds goes through the same experience as visitors do, but he looks for violations with sprinklers, fire detectors, exit signs and back-up lighting.

"The number one thing that we need to do is make sure that individuals can exit in a safe fashion if they need to evacuate the building," Reynolds said.

Necropolis owner Steve Walls has been preparing for months to pass the inspection, replacing batteries in smoke detectors, tagging extinguishers and posting exit signs.

"When I go to a venue I expect to be safe. People expect the same thing here," said Walls.

Even the staff of 70 people knows what to do in the event of an emergency.

"Most of our concern is people passing out. We have to get someone; we have to get someone in and out of the building," Walls said.

The state fire marshall Jim Greeson said there are more than 90 haunted houses in Indiana, and he's only had to shut down one.

"The haunted house operators, they know what to expect. They know the fire code," Greeson said. "To be honest with you, the vast majority of cases, all around the state, compliance is obtained almost always."

Greeson said most violations are minor. Operators are given a chance to make corrections before they're issued a certificate.