Three animal activists who chained themselves to a railing on the roof of Cedars-Sinai Medical Center to protest the use of animals in medical research were arrested for trespassing by police who used bolt cutters to free them. Seven other members of a group called Second Chance for Animals chained themselves to a truck used to bring animals to the hospital from the San Bernardino City Animal Shelter. Chris DeRose, group founder, vowed to remain until arrested or until two demands were met. The group wants the pound to stop selling animals and wants Cedars-Sinai to open its research facility to his organization and the news media for inspection. Hospital spokesman Ron Wise said the protesters were “making wild charges,” adding that the facilities were inspected by the American Assn. of Laboratory Animal Caretakers in 1984 and approved for three years.