Leo D. Rayon, Jr. is an Assistant Professor I of the Department of English in the Institute of Teacher Education at Davao del Norte State College, Panabo City, Davao del Norte. He acquired his Bachelor of Arts in English Language [Magna Cum Laude and Class Valedictorian] in 2013, Teaching Diploma in 2014, Master of English in Applied Linguistics in 2017, and Doctor of Philosophy in Development Research and Administration in 2021, all of these were earned from the University of Southeastern Philippines. He is licensed professional teacher. He is also a forensic linguist who concentrates on the study of fraudulent texts and highly disputed documents. In 2016, he was a fellow to the 16th Edition International Summer School in Forensic Linguistic Analysis held by the International Association of Forensic Linguists. Further, he has presented researches in various local, national, and international conferences and has a few publications under his name. Meanwhile, his forensic discourse-based investigation on Philippine suicide notes has accorded him 6 international, 4 regional/national, and 6 institutional awards and recognitions on research. His research fields of interest include forensic linguistics, forensic and critical discourse analysis, second language research, sociolinguistics, indigenous and gender studies, interplay of language and law, development planning, research, and evaluation, and political economies in language studies.

Currently, Leo is the Fulbright Foreign Language Teaching Assistant (FLTA) at Gonzaga University in Spokane, Washington State, U.S.A. for the Academic Year 2021-2022.