Giant billboards around the Houston area have featured detailed digital photos of 55 violent gang fugitives and led to the capture of 35 of them in the past year.

Now the successful www.stophoustongangs.org program is adding a cash component. The public can also collect a reward of up to $5,000 for tips that lead to these arrests through a partnership with Houston's Crime Stoppers, law enforcement authorities announced Wednesday.

Tips from the public are critical in the push to dismantle the 300 gangs with some 20,000 members in the Houston region, Harris County Sheriff Adrian Garcia said.

"Some have called just to be a good citizen," he said. "But now someone can do it for the money, too."