Gastón Mascareñas, Co-Director of SPI.(Sonoran Paranormal Investigations) offers an overview of. his 15 years of haunting investigation, related technology evaluation, and protocol definition experience. Sonoran Paranormal Investigations (SPI) is a scientifically oriented haunting investigation group. For the past 18 years, SPI has covered the entire state of Arizona, investigating residences, apartments, federal, state, and local government facilities, commercial businesses, and public and private institutions. SPI is run by volunteers and does not charge for its services. Its mission is to investigate cases of alleged hauntings and put clients minds to rest. A $10 offering is requested for this presentation.