If you are choosing between good and bad, of course you will go to choose the good one and it is an easy decision if you know which is which.
How if you are about to choose between two persons to qualify in a vacant position in your office, can you determine which of them is good and which is bad.
If you are psychologist this would be an easy job, but of course you can not always tell who is lying or not.
If only you can read people minds, you can always have the best choice.
Evaluating applicant is a critical job, because you might misidentify and accidentally let a good person disqualify in that position he/she applying for.
Of course during the interview, an applicant will do all their best to impress you and be a smart as possible to pass the interview.
Some people can easily be overwhelmed through hearing impressing words.
So the tendency of being caught from smart answers and sugar coated respond, can somehow lead you to approved someone that has been hiding from authorities.
And the worse thing that can happen is getting involved to serious cases because you hire immoral person in your company.
As a lesson, you should learn from your mistake.
Conduct free background check to evaluate applicants and see if they are really qualified and don't have any bad records on their profile.
You can try different free background check online and make a comparison on the results so you can determine if the results are accurate and consistent.