WAILUKU — Drivers in two separate fatal traffic collisions last year entered not-guilty pleas in 2nd Circuit Court on Tuesday, a day after they were arrested following grand jury indictments last week.

Kalani Au Hoon, 44, of Wailuku, pleaded not guilty to two counts of manslaughter, operating a vehicle under the influence of an intoxicant, reckless driving of a vehicle and inattention to driving. He is charged in connection with a June 21, 2019, crash on Piilani Highway in Kihei that killed 49-year-old Mildred Jouvenat and her 14-year-old son, Jacob, both of Kihei.

His bail remains at $203,000.

Judge Rhonda Loo ordered that a bail study be done with a bail hearing set for Friday in her courtroom. A pretrial conference is scheduled for Aug. 25.

Also pleading not guilty Tuesday morning was Kailey Amber Duarte, 24, of Haiku, to one count of manslaughter, three counts of negligent injury in the first degree and negligent injury in the second degree, in connection to a June 16, 2019, crash on Haliimaile Road that killed 39-year-old Teresa Pham of Spring, Texas. Duarte’s bail remains at $234,000.

Loo also ordered a bail study be done with a bail hearing set for Thursday before 2nd Circuit Judge Kelsey Kawano. A pretrial conference is set for Aug. 31.

Deputy Prosecutor Brandon Segal, who heads the prosecutor’s new Vehicular Homicide and Road Safety Unit, said during separate hearings for Au Hoon and Duarte that since alcohol was involved in both cases, further measures should be ordered if the defendants are released.

Loo granted Segal’s request that if defendants are released, they must have SCRAM continuous alcohol monitoring bracelets within five days. The bracelets, which are worn on the ankle, test the wearer’s sweat for alcohol every 30 minutes, according to SCRAM’s website. The defendants’ vehicles would also have to be equipped with an ignition interlock device, which operates as a breathalyzer that a driver must use before starting their vehicle.

Loo also ordered that defendants stay away from any witnesses in the case and to report to the Maui Intake Service Center if released. They must not consume any drugs or alcohol and must submit to random testing, among other conditions.

* Melissa Tanji can be reached at mtanji@mauinews.com.