In Greece, Justice was represented by the goddess Dike (daughter of Themis) who, eyes wide open, held a sword and scales or by Themis holding just scales, or scales and a cornucopia.
In Rome, justice was represented by the goddess Roman Justitia who appears blindfolded, holding balanced scales.
The sword represents strength, courage, prudence, order, rule and that which is guided by conscience and reason.
The balance symbolises equity, balance, deliberation, equality of decisions in the application of the law.
The blindfolded goddess represents the desire for equal treatment for all, without any distinction. The aims are impartiality and objectivity.
The goddess without a blindfold is interpreted as the need to keep one’s eyes wide open, so that no important detail for the application of the law is neglected.