From the Arlington County Police Department News Release:

The Arlington County Police Department’s Special Victim’s Unit is investigating eleven incidents of indecent exposure that have occurred periodically since mid-January 2010, on the Washington and Old Dominion bike trail. A white male subject has been exposing himself to woman at various sections along the bike trail. Detectives are looking for more information from the public regarding these exposures.

Anyone who uses the W & OD Bike trail and observes any suspicious activity is asked to contact police. Police have significantly increased patrols on the bike paths. They also urge people who frequently spend time on bike trails and other secluded areas to be cautious and aware of their surroundings. Women should avoid walking or running alone, and they are encouraged not to use devices such as headphones that prevent hearing someone approach. Police recommend that bike trail users carry cell phones so that they can call police as soon as incidents occur. People should report anyone observed acting in a manner not consistent with other bike trail users, such as loitering in the wooded areas, as suspicious behavior.

Anyone with any information about this case is asked to contact Detective Comer at (703) 228-4243 or Detective Austin at (703) 228-4241.