What I do know is about Los Zetas and all the criminality that comes from the drug cartels in Mexico, I'm a well informed person and I exposed myself to that danger when I came to USA in 2012 (you can read it here http://cubanoyemigrante.blogspot.com/2013/08/serie... )

Background Check Report" is a name-match report of criminal convictions, if any are found in participating municipalities.

The only cost associated with using the software is a $45 fee that is paid by the tenant to cover the cost of the background check, credit report, criminal history, rental history, and income verification.Using Turbo Tenant is simple and user-friendly.

For background/criminal/credit checks I recommend TransUnion Smart Move.

If you do not have a permissible use, you will not be given access to the personal information.In addition to complying with these privacy acts, you should understand that, under the Fair Credit Reporting Act (FCRA) (15 U.S.C. sec 1681), the data provided to you by using the LexisNexis® products may not be used as a factor in establishing a consumer’s eligibility for credit, insurance, employment or other purposes by that act.There are criminal fines and civil liabilities for knowingly violating the provisions and restrictions of these acts.

And that there are criminal penalties involved.

They provide you with an application credit score, eviction history, and criminal background check. 

If you are unfamiliar with the Landlord Tenant law here are a few examples..Landlord can only charge up to one month rent for a security deposit or “advanced deposit” If tenant with a criminal history is denied the law assumes the Landlord denied this tenant because of their criminal history and can be finedIf tenant leaves the unit before their lease is up the landlord has to make good faith effort to fill the vacancy.

And that can lead to very nasty lawsuits and or sellers filing criminal charges if the set up was a rip the rents scheme

That gave me credit history, income verification, criminal records, eviction records, etc and helped me build out a thorough lease.