In USA: Woman forced to wear yellow insignia bracelet as she is ripped away from her children

[appalachiablue]

5. Nazi concentration camps ID Marking System: clothing badges, armbands, tatoos

ID Nazi Concentration Camps:
MARKING SYSTEM
From 1938, Jews in the camps were identified by a yellow star sewn onto their prison uniforms, a perversion of the Jewish Star of David symbol. After 1939 and with some variation from camp to camp, the categories of prisoners were easily identified by a marking system combining a colored inverted triangle with lettering. The badges sewn onto prisoner uniforms enabled SS guards to identify the alleged grounds for incarceration.
Criminals were marked with green inverted triangles, political prisoners with red, "asocials" (including Roma, nonconformists, vagrants, and other groups) with black or—in the case of Roma in some camps—brown triangles. Homosexuals were identified with pink triangles and Jehovah's Witnesses with purple ones. Non-German prisoners were identified by the first letter of the German name for their home country, which was sewn onto their badge. The two triangles forming the Jewish star badge would both be yellow unless the Jewish prisoner was included in one of the other prisoner categories. A Jewish political prisoner, for example, would be identified with a yellow triangle beneath a red triangle.
https://en.wikipedia.org/wiki/Identification_in_Nazi_camps

https://www.ushmm.org/wlc/en/article.php?ModuleId=10005378