EPA- “handcuffs.” This is the symbol for captivity and slavery. Handcuffs were introduced as a result of the slave trade. It later became popular among chiefs in cuffing offenders of the law. Anyone who is handcuffed becomes a slave and captive of the captor. It reminds offenders of the uncompromising nature of the law. It however discourages all forms of slavery, and is also a symbol for justice.