As any Child Protective Services caseworker can tell you, the first step in helping endangered children is to find them.
Many low-income families with CPS files move nomadically from relatives' homes to apartments to rent houses. Locating them can require the skills of a private investigator.
And often that's whom caseworkers turn to for help.
Under a program funded by United Way of Tarrant County, a licensed private investigator has tracked down more than 300 families that seemed to have vanished from the Earth.