this woman's name is catherine taylor.ives in arkansas and applied for a job with the local red cross. the background check comes back and says she has a long rap sheet of drug felonies. turns out they mistook her with this woman who lives in a different state. how does this happen? >> you know, if there are errors in a report individuals do have an opportunity to contest it so i'm sorry. i just don't know all the facts of that particular case. >> reporter: catherine did contest it but by the time choicepoint cleared it up, that job was long gone. >> they need to have tighter, stricter controls. you're talking about human lives. this has got to stop. >> the company that ran catherine taylor's background check was bought by lexus nexus. they say their systems have since improved and now they have a 99.8% accuracy rate. experts say if this happens to you, you don't have many options, unfortunately. you can contact the background check company as catherine did and dispute it. the problem is, they have 30 days to investigate.