U.S.-backed Contras will allow Nicaragua to look for missing people in their camps if the Sandinista government allows them to inspect its prisons, a rebel leader said. In a broadcast on rebel Radio Liberacion monitored in Managua, Col. Enrique Bermudez, Contra military chief, referred to a request by a Nicaraguan delegation to visit rebel camps in Honduras to look for missing people. “There must be reciprocity,” he said. Nicaragua has formed a committee to look for thousands of people the government says have been forced to fight for the rebels. The Contras deny holding anyone against their will.