OKLAHOMA CITY -- The Oklahoma State Fair is a big event. Each year hundreds of thousands of people pour through the gates looking for a good time.
The fun can quickly fade when one of your loved ones disappears.
However, law enforcement are on hand making sure if your child or anyone else goes missing, they can get on the case quickly.
Mark Crawford, with the US Marshals Sex Offender Investigations, said, "We always hope we aren't needed, but in those rare occasions where we are we're here."
Thirty-two years ago two young teens disappeared from the state fair. Those girls have never been found. (To see pictures of what the girls looked like at the time they disappeared and an age progressed photo of what they might look like today, scroll down)
It's a situation law enforcement officials hope never happens again.
Crawford says they are on hand to make sure they can immediately respond if any child goes missing.
He said, "It's a very safe environment, but we want to be mindful of what could possibly happen."
Watching the crowds with high tech cameras, Crawford says the hope is to prevent cases like that of Charlotte Kinsey and Cinda Pallet, the two 13-year-olds who went missing at the fair back in 1981.
Crawford said, "We have not forgot those children."
Crawford says parents can be proactive. He says it's a good idea for everyone to take a photo of their child before walking in to the fair, that way you know exactly what they are wearing if you do get separated.
It's something parents, like Lisa Lujan, have already done. She also talked with her kids about the importance of not wandering off.
Lujan said, "They know don't go anywhere with anybody and don't take anything from anybody."
Crawford says while it's not uncommon for children to get separated from their parents, in most cases, they are reunited quickly.
However, he says officials are still, 32 years later, searching for Charlotte and Cinda.
Crawford said, "On these situations we're never going to give up hope. We're never going to stop looking."
On that note, if you have any information on what happened to Charlotte or Cinda you're asked to contact Oklahoma City Police.
Look at this slideshow to see what Charlotte and Cinda looked like at the time they disappeared. You will also see age progression photos of what they might look like today.