Tipsters looking to notify Naval Criminal Investigative Service about crimes and suspicious activities can use the NCIS Tip Hotline by sending a text beginning with the word NCIS followed by a tip to CRIMES, 274637, going to the “Report a Crime” tab on ncis.navy.mil. Tips can be submitted about narcotics, theft, sexual assault, domestic violence and gang activity, along with any other criminal activity or anticipated criminal action relating to naval services.