The Pennsylvania Association of Arson Investigators (P.A.A.I.) is the Pennsylvania State Chapter (29) of the International Association of Arson Investigators (I.A.A.I.) The P.A.A.I. is an association of members representing fire departments, police departments, insurance companies, attorneys, private investigators and engineers from across the Commonwealth of Pennsylvania. Our association strives to provide the education, experience and ability to accurately determine the origin and cause of fires and explosions.