I did a will at my Amphur office recently .
First thing I had to do was visit the main district hospital to obtain a signature from a Doctor stating that I was okay.
I cannot say anymore than " okay " because the Doctor didn't know what was required.
So it was Blood pressure , Height , Weight and Stethoscope that was about it.
Return to Amphur office , with my Benefactor and Two witnesses from our village who all had to show House books and Thai I.D.s. with signed copies .
I had to do the same with my Passport and Yellow book and any Bank books that I wanted including in the will , with signed copies .
After the Doc. was prepared , it was put in an envelope , and sealed with scotch tape , then myself and the witnesses had to sign across the Scotch tape .