Wake County Sheriff's Capt. Charles Young says the public can help out too.
"[If you see] any unusual activity, whether it be persons, vehicles or any situation, just use your best judgment to call it in," he says.
Operators at the 911 center say that while the call volume has been average, they understand people are still a little jittery.
"Anyone that looks suspicious in most people's neighborhoods, they would call if they hadn't seen that person before or sometimes they go by the dress or the action of the person," says supervisor Davidsine Brown.
Young also says people should be patient and understand the security precautions that are being taken. For example, even if you have worked at a company for years, security officers may check your ID. And parking areas that used to be open may now be off-limits.
Copyright 2022 by Capitol Broadcasting Company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.