WASHINGTON (AP) — The number of sex-related crimes occurring in U.S. military communities is far greater than the Defense Department has publicly reported, a U.S. senator said Monday in a scathing critique that asserts the Pentagon has refused to provide her information about sexual assaults at several major bases. The senator said her analysis of 107 sexual assault cases found punishments that were too lenient and the word of the alleged assailant was more likely to be believed than the victim. Female civilians were the victims in more than half the cases, according to Gillibrand, an outspoken advocate for an overhaul of the military justice system. The report said the case files contradict the Pentagon's assertion that military commanders will be tough on service members accused of sex crimes. Gillibrand has backed legislation that would remove commanders from the process of deciding whether serious crimes, including sexual misconduct cases, go to trial. Gillibrand's request for the case files followed a February 2014 Associated Press investigation into the U.S.