WESTFIELD — A Westfield man has been charged with drug possession. At around 2:21 a.m. Tuesday, the Westfield Police Department investigated a vehicle that was parked on a privately owned lot just off Route 394 north of I-90. Upon further investigation, officers found Edwin A. Stratton, 38, of Westfield, a passenger in the vehicle, to be in possession of marijuana oil, a controlled substance. Stratton was arrested for seventh-degree criminal possession of a controlled substance and was issued an appearance ticket for Westfield Town Court at a later date.