Image by Flickr user cafemama Here's a video explaining how the Raptor Technologies system works.

School systems here in the Lowcountry are slowly but surely beefing up their visitor security systems to quickly and properly identify sex-offenders wishing to visit on school grounds.

The Charleston County School Board has approved spending $147,420 to put the software in every district school by March of 2010.

What does the new system do? Within a minute, the system runs visitors' names through a national sex-offender database and alerts the school if it finds a match. If a match is detected, the computer scans his or her photo identification and prints their picture, school name, date and their destination on a sticker.

For more on the heightened school security measures, check out the article in The Post and Courier.