The defense rested in R. Foster Winans’ trial.

Three weeks of testimony came to a close after Patricia A. Maloy, Dow Jones’ employee services manager, acknowledged in testimony that a personnel handbook given to Wall Street Journal employees is not fully explicit on rules governing employee behavior. The defense has attacked the newspaper’s employee policies as vague in this case, in which former reporter Winans, his roommate and a former stockbroker are accused of using advance information from the Journal’s Heard on the Street column to trade stocks.