If it's not the final disposition, then it could be a court entry indicating that there was a petition (criminal charging document) filed and the minor was ordered detained (held in custody) pending further action by the court.
Monk (TV series) Monk is an American comedy-drama detective mystery television series created by Andy Breckman and starring Tony Shalhoub as the eponymous character, Adrian Monk.
The main cast of Monk (from left); Jason Gray-Stanford as Randy Disher, Ted Levine as Leland Stottlemeyer, Tony Shalhoub as Adrian Monk, and Bitty Schram as Sharona Fleming. Casting for the show began as early as 1998, when Monk was being developed for ABC.