The US government could have investigated sexual assault in the federal merchant marine academy a decade ago, but shut efforts down, a former Maritime Administration (MarAd) general counsel alleges.

Denise Rucker Krepp said she requested the Department of Transportation (DOT) inspector general to look into reports of sexual assault at the US Merchant Marine Academy in 2011 — five years before a sexual assault scandal forced the university to shutter its at-sea training programme.