Police stopped Winslow in East Hanover on Rt. 10 by the Target store. It's unclear why he was pulled over. The criminal complaint for third-degree possession of a dangerous controlled substance came on Dec. 30.
According to Wikipedia, AB-Fubinaca was "developed by Pfizer in 2009 as an analgesic medication" and "discovered as an ingredient in synthetic cannabis blends in Japan." It's an agonist for the cannabinoid receptors, reports Debora Labs, that was "first synthesized as a strong CB1 receptor for possible therapeutic use."
While it's legal in Europe, many states, including New Jersey, have banned AB-Fubinaca and other synthetic cannabinoids for smoking purposes.
Winslow, the son of NFL Hall of Famer Kellen, was suspended for four games by the NFL in 2013 for using a performance-enhancing drug. He had 31 catches for 388 yards and two TDs in 12 games with the Jets in 2013. His best season was in 2007 when he gained 1,106 yards playing for the Browns. He's currently a free agent.
Update: On May 22, Winslow was granted a conditional discharge. He must stay out of trouble for a year before the charge is offically dismissed.