"Parts of Japan gave them tattoo on the criminals´ arms. Many are simple lines around the arm. On the bottom line, the third left, I can see the sign of “悪”, bad in Japanese. This was Kishu´s (紀州/now Mie and Wakayama prefecture) tattoo."
Samurai - Back Tattoo Más
50 Spiritual Traditional Japanese Style Tattoo – Meanings and Designs