DULLES, VA. - Day after day, inside a tightly guarded federal lab, chemist Arthur Berrier probes packages of dangerous new synthetic drugs in search of secrets he can share with criminal investigators before the substances kill or seriously harm someone else.
It's a constant game of catch-up. As soon as he tips off law enforcement officials to the kinds of chemical compounds turning up in the drugs, another form of them emerges.
Manufacturers of the drugs can choose from an almost endless menu of chemicals that they can concoct, putting the U.S. Drug Enforcement Administration at a disadvantage as it tries to help states crack down.
"They're keeping ahead of us," Berrier said.
From the DEA research lab here on the suburban fringe of the nation's capital, to small-town sheriff's offices across the country, taming the rising menace of synthetic drugs remains a losing battle.
Hardly anyone saw the scourge coming. The wild names and strange mixes of substances contained in the drugs are constantly changing, quickly rendering state or federal bans against them weak or moot. Enforcing new laws against synthetic drugs -- sometimes sold as harmless "bath salts" over the Internet by shadowy foreign companies or at local stores -- is also difficult. And police departments in places swamped by the drugs say they lack either the resources or the expertise to respond to the problem.
"For us, this is just getting bigger and bigger," said Thomas Duncan, Berrier's boss at the Virginia research lab. "We had no idea."
'What do we do?'