A total of 59 customers were found to be under the legal age of 20, |while urine samples from 66 customers tested positive for illicit drugs.

The authorities involved in the raid also found a lot of equipment said to be used for taking drugs.

Metropolitan Police commissioner Pol Lt-General Sanit Mahathaworn said yesterday that he had ordered the formation of a fact-finding committee to determine whether any officers at the Chana Songkhram police station, which has jurisdiction over Khao San area, should be held responsible for negligence.

Anyone found to have been negligent in carrying out their duties would face disciplinary action, he added.

National police chief Pol General Chakthip Chaijinda yesterday thanked the various agencies from the Interior Ministry that were involved in the raid.

He said the Royal Thai Police had measures to take action against the responsible local police officials found to have been negligent.

Most of the authorities involved in the raid on the Zed Club nightspot came from the Local Administration Department of the Interior Ministry. The club is located opposite the Bowornniwet Temple in Phra Nakhon district.

Many of the customers rounded up during the raid were found to be below the legal age.

Twenty-five of them are aged under 18, with a few as young |as 16, according to the ministry.

Of those who tested positive for drugs, 25 people are under 18.

Drugs including ketamine and Ecstasy were found abandoned on the floor and in toilets.

The raid came after the authorities received complaints from parents that their children gathered at the club and took drugs.