an examiner, an inquisitor, an investigator (see Molina)
Alonso de Molina:
tetlatemoliani. examinador, inquisidor o pesquisidor. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 109r. col. 2. Thanks to Joe Campbell for providing the transcription.