Feb. 16 (Bloomberg) -- The eldest son of Philadelphia Eagles coach Andy Reid was charged with misdemeanor drug and traffic counts in an auto accident that occurred hours after his brother was involved in what police said was a criminal traffic confrontation.

Garrett Reid, 23, faces reckless driving, driving under the influence, and possession of heroin, amphetamines and testosterone among charges filed today by Pennsylvania Attorney General Tom Corbett.

The charges stemmed from a Jan. 30 accident in which police say Garrett Reid's vehicle ran a red light at almost 20 miles an hour above the speed limit and collided with a vehicle driven by 55-year-old Louise Hartman. She was treated for cervical strain and a head cut at the Hospital of the University of Pennsylvania.

Police found Reid in possession of heroin, amphetamines and testosterone, a steroid, after the accident, Corbett said in a statement. Reid waived a hearing in Blue Bell District Court this morning and is scheduled for arraignment at the Montgomery County Courthouse in Norristown, Pennsylvania, on April 18.

Andy Reid took a monthlong leave of absence from his job as head coach and executive vice president of the National Football League's Eagles on Feb. 12, after his son Britt was arraigned on drug and weapons charges following a traffic confrontation about five hours before Garrett's crash.

Police found Britt Reid, 21, at the scene of Garrett's accident and said his vehicle's license-plate number matched one provided by a motorist who reported that a white male in a sport utility vehicle pointed a pistol at him following a verbal argument around 9 a.m. that morning. A search of the vehicle found cocaine residue, marijuana and four tablets of the prescription painkiller Oxycodone, Montgomery County prosecutors said in court papers.

Britt Reid was arraigned and released on bond earlier this month after being charged with a third-degree felony for carrying a firearm without a license, along with charges including drug possession, assault, making terrorist threats, possession of an instrument of crime and making a false report to authorities.

To contact the reporter on this story: Aaron Kuriloff in New York at akuriloff@bloomberg.net.

Last Updated: February 16, 2007 09:55 EST