- Japanese: 使番 (tsukaiban)
Tsukaiban were battlefield messengers and couriers during the medieval period; in the Edo period the title referred to inspectors, often acting as assistants to metsuke. Often, metsuke would be chosen from their ranks.
- Beerens, Anna. Interview with a Bakumatsu Official: A Translation from Kyuji Shimonroku Monumenta Nipponica, Vol. 55, No. 3. (Autumn, 2000), pp. 369-398.