Dwight Finds Drugs in the Parking Lot on the Next Episode of The Office  4/10/06

THE OFFICE 9:30PM-10:00PM Thursday, April 27 2006 . 

"Drug Testing" When Dwight (Rainn Wilson) finds half a joint in the Dunder Mifflin parking lot, he puts on his Volunteer Sheriff1s uniform and launches a full investigation -- prompting Michael (Golden Globe winner Steve Carell) to ask for an unusual favor. 

Pam (Jenna Fischer) playfully issues a challenge to Jim (John Krasinski) and he does his best to follow through with it. 

B.J. Novak , Leslie David Baker, Brian Baumgartner, Kate Flannery, Angela Kinsey, Oscar Nunez, Phyllis Smith, Melora Hardin and David Denham also star.

Source: NBC Press Release