Dave Claflin is at the helm of Fas-Tes, a San Antonio-based drug, background, and DNA-testing company that works day and night to deliver accurate results to clients. In these articles, he talks about his business and answers some frequently asked questions.

Why are Background Checks Necessary?

You don’t have to be chased by a private investigator to be the subject of a background check. Just look at how practical and widespread this service is.

All About DNA Paternity Testing

Determining paternity can get very, very difficult. Read on to learn more about what the process entails.

Are Some Drugs Harder Than Others To Test For?

Here’s the thing: Drugs leave a footprint in your body. So testing for drugs is like finding that days-old print in the sand.

When are Drug Testing Services Needed?

About to start a new job? Don’t be surprised if your company insists on a drug test.

What Background Checks are Most Common in San Antonio?

You’ll be surprised to learn how interested certain groups of people may be in your background.