There are dangerous shortcomings in Texas' DPS Computerized Criminal History database. In a study done by Imperative in October of 2008, found that the DPS was missing 36% of known criminal records- records ranging from simple theft to capital murder.
This means there is a one in three chance of missing criminal records using these databases. Cases that ended in dismissals were also excluded.
Employer often uses this database and other state databases such as Texas' to make important hiring decisions. They are inadequately maintained, and organizations that are concerned about providing a safe (and profitable) work environment should be wary when using them.
Utilizing a County Criminal search is the fail safe way to find records. Using the county level courts and searching every county a potential employee lived in is the only way to ensure you are getting the most thorough background check.