Now on page 190 of the book on Thai magic. Still on the section on magical tattoos.
A sala, or Thai mage, has special implements for tattoos and works manily with black, blue, and red ink. A sacred platform is constructed, on which the tattooing is executed. He must follow certain precepts: no killing of a live being, no stealing, no falsehoods, no adultery, and no consumption of alcohol. There are also many restrictions on relationships.
The person receiving the tattoo must follow the same precepts. In addition, he must also go back to the sala to have the tattoo revitalized after a certain period of time.
Warriors are the usual recipients of magical tattoos.