It's not solely the military population. Crimes are up in Hawai'i from 2015 to 2016 and it's mostly local people.

Reported rapes are up 15.1% from 2015 to 2016 in Hawai'i.

Violent crimes are up 25.1% from 2015 to 2016 in Hawai'i.

Murder is up 20.1% from 2015 to 2016 in Hawai'i.

https://ucr.fbi.gov/crime-in-the-u.s/2016/crime-in-the-u.s.-2016/tables/table-2