A Roxbury man who was stopped after allegedly failing to heed a stop sign was arrested Thursday after troopers found 4 pounds of heroin in his car, according to State Police.
Alex Hernandez, 37, was held on $50,000 bail on charges of heroin trafficking, furnishing a false name and traffic violations.
He was initially pulled over by a state trooper at about 6 p.m. on Columbia Road in Dorchester for failing to stop at a stop sign on Old Road, State Police said in a statement.
The trooper found what was believed to be heroin on Hernandez, and a later search uncovered a large container filled with 4 pounds of suspected heroin inside the 2009 Toyota Camry, the statement said. He also found $1,757 in cash.
In addition, Hernandez allegedly falsified his name and provided false Registry of Motor Vehicle documents.
J.D. Capelouto can be reached at jd.capelouto@globe.com. Follow him on Twitter @jdcapelouto.