Misdemeanour drug possession charges against Whitney Houston have been dropped by a Hawaiian judge, following a substance abuse assessment of the star.

Houston, 44, was suspected of possessing marijuana while travelling through a Hawaiian airport in 2000 with ex-husband Bobby Brown.

The pop superstar allegedly disposed of less than half an ounce (28 grams) of the drug and three partially smoked marijuana cigarettes, before boarding a United Airlines flight from Keahole-Kona airport to San Francisco, California.

The assessment, submitted in February 2008 by a New Jersey substance abuse counselor, stated Houston does not require treatment for substance abuse. She is now cleared of all charges.

Rumours of drug abuse have surrounded the star since her marriage to R&B singer Brown, and she spent time in rehabilitation facilities in 2004 and 2005.

Houston's record label bosses maintain she has been clean of all illegal substances since her most recent stint three years ago. (JMA/WNWCZM/IG)

Copyright 2008 WENN