DALLAS (AP) - An investigation by Dallas television station WFAA finds that more than one out of twenty nurses licensed in Texas have a criminal record. The station conducted background checks by comparing the names and dates of birth on each Texas nursing license with the Texas Department of Public Safety criminal database. Their analysis uncovered thousands of nurses with arrest records, some for offenses that included murder, kidnapping and arson. The Texas Board of Nursing told the station it wanted to run background checks of all nurses in 2005, but state lawmakers found the $5 million it would cost too expensive. State Rep. Fred Brown says the agency finally received money for the background checks last year, when the state had a surplus. Board officials say that while they got authorization to conduct thousands of outstanding background checks, they didn't receive enough extra staff to process and investigate nurses. Officials hope to complete comprehensive national background checks by 2012.