Pattaya police raided a makeshift village behind Wat Nong Or, arresting nine people who tested positive for methamphetamine use.
The eight officers who stormed the ramshackle village July 19 found 100 people gathered and ordered all to take urine tests. Nine were found to have used ya ba.
The seven men and two women were arrested and charged with illegal drug use.
Police bring in the 9 suspects for processing.