10 U.S.C. § 855 : US Code - Section 855: Art. 55. Cruel and unusual punishments prohibited

Search 10 U.S.C. § 855 : US Code - Section 855: Art. 55. Cruel and unusual punishments prohibited

Punishment by flogging, or by branding, marking, or tattooing on
the body, or any other cruel or unusual punishment, may not be
adjudged by any court-martial or inflicted upon any person subject
to this chapter. The use of irons, single or double, except for the
purpose of safe custody, is prohibited.