State sheriffs arrested four city park supervisors who allegedly tried to smuggle what appeared to be crystal methamphetamine, an ice pipe and tobacco onto the grounds of the Oahu Community Correctional Center Thursday afternoon.

Also arrested were eight OCCC  inmates who had been part of a work crew that had been dispatched to Magic Island, said Toni Schwartz, spokeswoman for the state Department of Public Safety.

Public Safety Director Jodie Maesaka-Hirata said the supervisors also allowed inmates to swim at the Magic Island portion of Ala Moana Beach Park, against department instructions.

Schwartz said four vans were returning from a work line at Magic Island when they were stopped by guards as part of a routine check.

All four vans contained contraband.

The first van contained an ice pipe and an undisclosed amount of a white, crystal-like substance that appeared to be a crystal methamphetamine, which was found in a cooler, Schwartz said. City park supervisor Gordon Ng was arrested on suspicion of third-degree promotion  of a dangerous drug, as were the eight inmates, she said.

Found in the other vans were varying quantities of loose and packaged tobacco products. Arrested on suspicion of second-degree promotion of prison contraband were park supervisors Spencer Cabato, Leroy Kamealoha and Edward Mitsuda, as well as Ng.

The four park supervisors were released pending investigation and not charged.

The four city employees arrested hold the job position "Labor supervisor I" and make between $2,995 and $3,308 a month.

The arrests were made by state sheriffs and agents from the Narcotics Enforcement Division. The case is currently being investigated by internal affairs staff as well as sheriffs from the Public Safety Department.