Pentagon officials believe sexual assaults go underreported and estimate that the actual number of incidents of unwanted sexual contact in 2012 may have been 26,000, a sharp increase from the estimated 19,000 in 2011.
Some lawmakers responded strongly to news of Krusinski's arrest.
"When I saw this it made me literally sick to my stomach," Rep. Jackie Speier, D-Calif., said. "How many more reasons do we need to take cases of rape and sexual assault out of the chain of command?"
Speier introduced legislation in April that would establish a Sexual Assault Oversight and Response Council and create an enhanced Sexual Assault Oversight and Response office within the military.
Sen. Kirsten Gillibrand, D-N.Y., called the report "extremely disturbing."
"It is clear that the status quo regarding sexual assaults in the military is simply unacceptable," Gillibrand said in a statement emailed to ABC News. "Next week, I am going to take this issue head on by introducing a set of commonsense reforms. We have to reform how the military handles sexual assault cases and take on the culture that perpetuates this kind of behavior."
Defense Secretary Hagel ordered a review of rules surrounding military convictions for sexual assault in March after an Air Force general decided to throw out an F-16 fighter pilot's jury conviction for aggravated sexual assault.
ABC News' Tom Shine and Sarah Parnass contributed to this story.