This report documents the results of field assessments undertaken to determine the distribution and status of the globally threatened crocodilian, Tomistoma schlegelii, in peat swamp areas of Peninsular Malaysia. The study was focused in, and around, Peninsular Malaysia’s two largest peat swamp forests; the North Selangor peat swamp forest and the Southeast Pahang peat swamp forest. Surveys were conducted over several weeks and coincided with the drier (low water) times of the year at the different sites.