Since launching its "Blue Campaign" to promote awareness of human trafficking, the Department of Homeland Security officials said arrests tripled between 2010-2012 and doubled last year.

"Education is key to human trafficking," said Janice Ayala, special agent in charge of San Antonio. "The more people know about human trafficking, the more likely they'll come forward to report suspicious activity."

The campaign is a major unification among all forms of municipal, state and federal authorities focused on four areas: public outreach, training, victim assistance and law enforcement investigations. 

One of the main goals of public outreach is making sure people understand the difference between human trafficking and human smuggling.

"Human smuggling is crime against a border. People choose to be moved through a pipeline to get to a final destination," she said. "Human trafficking is a form of modern-day slavery. It occurs when individuals are subjected to sexual exploitation or forced labor due to fraud, force or coercion for the purposes of exploitation or commercial gain."

According to statistics, one of every four trafficking victims travels along the Interstate 10 corridor in Texas. Last year, DHS rescued 330 people, a third of them children.

"The trauma of human trafficking is so great that victims often don't self-identify as victims and they also don't seek help from law enforcement even when they're in highly public places," said Ayala.

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