(CBSNews) - Today, growing worldwide demand has encouraged far more fraud in the wine world. That’s created a whole new line of work for those with a keen eye and nose for a bogus bottle, reports CBS News correspondent Jonathan Vigliotti.

London’s Berry Bros. wine shop is older than the United States of America – 319 years old to be exact.

The inside looks like a library, with some wines on the shelves as old as literary classics. Prices easily reach thousands of dollars. It’s liquid currency, and counterfeits are crashing in.

That’s where Phillip Moulin steps in.

“How many bottles are here in this warehouse?” Vigliotti asked at the Berry Bros. wine warehouse outside London.

“In this warehouse, we have approaching three million,” Moulin said.

As wine authenticator, it’s his job to make sure every bottle is as the label on it says it to be.