AHIA - Arizona Homicide Investigator's Association The sole purpose of the Arizona Homicide Investigators Association shall be to initiate and sponsor a sound, statewide Homicide Association and to promote a constructive relationship between Homicide Investigators throughout the State of Arizona. AHIA promotes mutual interest, disseminates facts and other information relative to homicides and death investigations, improves investigative techniques, and improves the standards, qualifications and knowledge of homicide investigators.