BAKERSFIELD, Calif. (KGET) -- The entire Bakersfield chapter of the Hells Angels biker gang appeared in court Thursday to face charges including robbery, false imprisonment and assault with a gun in a hearing with about a dozen deputies stationed throughout the room. Hells Angels member Armando Villasenor. Not guilty pleas were entered by attorney Elliott Magnus -- who appeared for the Indigent Defense Program -- on behalf of Ricardo Alvarez, 42, Armando Villasenor, 55, Joseph Soto Sr., 57, Joseph Soto Jr., 33, Joshua Zavala, 31, John Seeger, 57, and Joshua Vaughn, 37. Hells Angels member Ricardo Alvarez. All but Vaughn -- who was already in custody -- were arrested Tuesday, according to sheriff's officials. Hells Angels member Joshua Zavala. They're each being held on $800,000 bail, with a stipulation that any money put up for them must be proven to have been legally obtained. A criminal protective order was issued barring them from harassing or otherwise having any contact with a person named in the document. Victory Mutual Water Company customers advised to boil their water A preliminary hearing is currently set for July 11. Joshua Vaughn looks toward the audience. He belongs to the Sons of Hell Motorcycle Club -- which takes orders from the Hells Angels. Alvarez, Villasenor, the Sotos and Zavala are patched members of the gang, officials say, while Vaughn and Seeger belong to the Sons of Hell Motorcycle Cub — which takes orders from the Hells Angels. John Seeger, another member of the Sons of Hell. More than 150 law enforcement officers from the Kern County Sheriff’s Office, California Highway Patrol and Bureau of Alcohol, Tobacco, Firearms and Explosives were involved in their arrests.