Roughly 20 percent of sex offenders released from prison to two South Texas counties over an 18-month period failed to register with authorities or gave incomplete addresses.
That's according to an investigation by the Houston Chronicle and San Antonio Express-News.
The newspapers examined the whereabouts of more than 800 sex offenders in Harris and Bexar counties discharged from prison during the 18 months ending in December 2006.
Each had been rejected for early release and served their entire sentence.
Of those -- nearly one in five either didn't register as sex offenders or their addresses in the state registry were incomplete.
More than 46-thousand adults in Texas are registered as sex offenders for crimes ranging from indecent exposure to aggravated sexual assault of a child.
But while lawmakers and others in Austin talk of getting tough on violent child sex offenders, calling for longer sentences with no possibility of parole, police who work with sex offenders say politicians are overlooking a disturbing trend.