A federal grand jury in Pittsburgh, Penn. early this month indicted one person in connection with a scheme to defraud trucking companies over drug test results of drivers.

Elizabeth “Betsy” Pope, operator of Eastgate Laboratory Testing, has been charged with mail fraud for allegedly trying to defraud several Pittsburgh-area commercial motor vehicle drivers and employers, according to the U.S. Transportation Department’s Office of Inspector General. 

“Our investigation revealed that Eastgate conducted drug testing for commercial vehicle operators and various trucking companies located in Pittsburgh, Pennsylvania,” the office said in a statement. Eastgate served as a third party administrator to oversee the Federal Motor Carrier Safety Administration regulated testing.

The indictment alleges that between 2008 and 2012, Pope used the signature of a medical review officer who had not worked for Eastgate since June 2005 to certify test results. FMCSA and the commercial operators relied on the suspect drug test reports to demonstrate compliance with federal regulations. 

No date has been announced for the trial.