Regarding rugoscopy, all are true except?
View of the hard palate showing palatal rugae. Torus palatinus,a bony protrusion on the palate is also visible. Primary rugae are 5-10mm or more. Secondary rugae are 3-5mm. Fragmented rugae are less than 3mm. Palatal rugae are unique to each person. Harrison Allen, in 1889, suggested the use of palatal rugae for identity verification.
Palatal rugae are used as a method of identification
Palatoprints do not change during growth
Primary rugae are less than 3mm
Secondary rugae are 3-5mm
Human identification