Ajero, Orfelina Manalo Exploring police investigation reports : a lingusitic analysis Orfelina Manalo Ajero - Davao City : University of Mindanao 2019 - x, 144 pages with 1 CD Dissertation (Doctor of Philosophy in Applied Linguistics) -- University of Mindanao, March 2019 Subjects--Topical Terms: Police -- Philippines. Police reports.