Islamic Justice, being truthful, various virtues and sins the prohibition of perjury in the Qur'an are repeated many times:
And eat up not one another’s property unjustly (in any illegal way e.g. stealing, robbing, deceiving, etc.), nor give bribery to the rulers (judges before presenting your cases) that you may knowingly eat up a part of the property of others sinfully. SuraAl-Baqara:188 (2:188)
Verily! Allah commands that you should render back the trusts to those to whom they are due; and that when you judge between men, you judge with justice. Verily, how excellent is the teaching which He (Allâh) gives you! Truly, Allâh is Ever All-Hearer, All-Seer. Sura An-Nisa:58 (4:58)
But no, by your Lord, they can have no Faith, until they make you (O Muhammad) judge in all disputes between them, and find in themselves no resistance against your decisions, and accept (them) with full submission. Sura An-Nisa:60 (4:60)
It is not for a believer to kill a believer except (that it be) by mistake; and whosoever kills a believer by mistake, (it is ordained that) he must set free a believing slave and a compensation (blood-money, i.e. Diya) be given to the deceased’s family unless they remit it. If the deceased belonged to a people at war with you and he was a believer, the freeing of a believing slave (is prescribed); and if he belonged to a people with whom you have a treaty of mutual alliance, compensation (blood-money - Diya) must be paid to his......