Whelan and Darby Township Police Chief Leonard McDevitt say they're worried that the two cases aren't isolated.
The first woman was pulled over near R.P. McMurphy's in Ridley Township about 1:30 a.m. Saturday. Scott claimed she had run a stop sign. He ordered her to follow him to Crowell Park - outside his department's jurisdiction - and began propositioning her, Whelan said.
"He said to her, 'What can you do for me that I can let you go?' and insisted that she do something for him in order to be released," Whelan said. "She told him no. She got the insinuation."
After three hours, Scott let the woman drive back to her home in Upper Darby. He followed her in his police car, Whelan said, "all in an effort to intimidate, to harass and to dominate this woman."
Whelan said Scott had a second woman in custody in the same park about 3 a.m. Sunday when the boyfriend of the first victim walked up and confronted him, forcing Scott to speed off in his police cruiser.
McDevitt called Scott's behavior "extremely disturbing," but said his background check had come back clean when he was hired.
"These kind of people don't belong in police work," he said. "We certainly don't want them working for us."
McDevitt said he expects other women to come forward about prior encounters with Scott.
"I seriously believe there are going to be a lot more," he said.
Scott, who was charged with assault, harassment, stalking, kidnapping and related offenses, declined to comment yesterday as he was led out of the Media courthouse in handcuffs.
Anyone with additional information about Scott should call Delaware County Detective Robert Lythgoe at 610-891-4243.
On Twitter: @wbender99