07/25/2012 11:55 EDT | Updated 09/24/2012 05:12 EDT

New doping test for human growth hormone in place for London Olympics, cleared weeks ago

LONDON - A new doping test for human growth hormone will be used at the London Olympics after it was cleared just weeks ago following a 13-year process.

David Howman, director general of the World Anti-Doping Agency, says the new procedure will be used alongside the existing test for HGH.

Howman says "it's something that underwent a strong period of scrutiny but it's now in place."

The first test for HGH was only introduced at the Olympics in Athens in 2004.

Weightlifter Pat Mendes — the top-ranked American in the over-105-kilogram weight class — became the first U.S. athlete in an Olympic sport to test positive for HGH and be disciplined for it. He was banned for two years in April.