Sheriff Sandra Hutchens told the Orange County Board of Supervisors Tuesday that she has canceled an agreement with the Orange County Fire Authority on search-and-rescue operations. The sheriff and firefighters have had issues over how to respond to emergencies from the air. The sheriff has a helicopter in the air for most of the day and typically can respond to an emergency faster than the OCFA’s helicopter, which lifts off only when summoned. The dispute came to a head during a Laguna Beach incident in which there was a near drowning and the sheriff’s helicopter got there first. Supervisor Todd Spitzer asked Hutchens about the status of the memorandum of understanding between the two agencies.