Background Checks Resource

I am going to do a criminal check on all of my employees but after checking around they seem to be quite expensive.  These companies want sign up fees, monthly fees, yearly fees all I want is to do criminal background check on my employees once a year by the time I pay all their dues it is going to cost me a lot of money. I did finally find a website www.crimefinder.com that does them at a reasonable price with no signup, monthly, or yearly fees. These companies with these fees are a ripoff.