Conducts criminal and non-criminal investigations, initial investigation into numerous crimes (robbery, burglary, assaults, etc.), conducts investigations concerning civil disturbances (landlord/tenant, failure to pay, child custody, etc.), conducts follow-up investigations of crimes and other incidents, conducts surveillance of areas for suspected or potential criminal activity. Tasks risk exposure to adverse environmental conditions, such as dirt, dust, pollen, odors, wetness, humidity, rain, fumes, temperature and noise extremes, machinery, vibrations, electric currents, traffic hazards, toxic agents, violence, disease, and/or pathogenic substances.