Mr. Panya, a thin and pale carpenter became very tired after installing furniture throughout the night. When his three colleagues who lived nearby walked home, he was left alone waiting for the pick-up truck from his company to bring him back to the furniture factory. He passed his time by going inside an unoccupied building to take a nap. Since the forsaken building was adjacent to a slum area in which amphetamine-taking was prevalent, and was the target of police patrolling whose mission was to stop drug trade and drive drug addicts away from unoccupied buildings.
Being tired after his hard work all night long, he was not fully conscious when he was woken by a police patrol. Moreover, he could not express himself clearly when being questioned and could not walk steadily when being instructed to move. The police suspected him of being an amphetamine addict and had him jailed. After a month in jail he was released and was informed that he was not found guilty since there was not amphetamine chemical in his urine.