"Nobody but law enforcement has access to the personal transaction data," he said.
Other task force members asked if Appriss is paid more money for increased pseudoephedrine sales.
Acquisto declined to answer specific questions about Appriss' contract with the drug manufacturers.
"If we block sales, we're not paid less," he said.
Carlos Gutierrez, who serves on the task force and represents the drug companies, said pseudoephedrine sales have declined in West Virginia and other states because of NPLEx.
"It's cutting down on our sales," he said.
Gov. Earl Ray Tomblin's substance-abuse bill in 2012 mandated that West Virginia pharmacies report to the NPLEx tracking system.
That year and the year before, state lawmakers rejected bills that would have required a doctor's prescription to purchase the cold and allergy medicine that's also used to make meth.
On Thursday, Lt. Chad Napier, an investigator with the Charleston Police Department, said police officers respond to complaints about meth labs nearly every day.
Napier said the officers often discover children in homes where meth labs are set up.
"The problem is huge," he said. "My guys don't want to be out there in the middle of it."
Napier said he supports legislation that would require a prescription for pseudoephedrine. Meth lab incidents have declined significantly in some states, such as Oregon and Mississippi, which have enacted a prescription-only law.
"It's a solvable problem," Napier said. "Make it prescription-only, and you won't have meth labs."
Reach Eric Eyre at erice...@wvgazette.com or 304-348-4869.