What I want to do here is list some of the types of justice that are commonly identified, and see how they are connected to the concept of equality in order to find out if the traditional link between justice and equality holds up to scrutiny. So let’s first have a look at some possible meanings of the word “justice”.
1. Distributive justice
Distributive justice (often called social justice) is about the allocation of resources and burdens. Justice may require that this allocation is done in accordance with certain rights (e.g. an equal right to a basic standard of living), merit or other criteria. This type of justice is about the fairness of what people get (e.g. basic goods, recognition, rewards etc.).
2. Contributive justice
Contributive justice is the opposite: it’s about what people are expected or able, not to get, but to contribute to society. It’s mainly about work: should people be required to be productive members of society, and if they are, should they have a right to organize their contribution in a fair and just way (for example, is it fair or just that some people are bound to menial tasks while others have much more interesting work?).
3. Criminal justice
Criminal justice is about rectification of interpersonal harm, about the restoration (when possible) of an initial position disturbed by harmful behavior, about retribution and punishment, and about restitutions or reparations of previous harm. Criminal justice is therefore often called corrective justice, rectificatory justice or punitive justice. And sometimes these words are supposed to refer to entirely different (sub)types of justice because there can indeed be substantial differences: criminal punishment may be intended to correct or rectify a wrong (e.g. theft), but it can also be used as plain retribution or even vengeance when the wrong is such that it can’t be corrected (e.g. murder).
Some argue that criminal justice is a type of distributive justice. One interpretation of distributive justice sees it as the distribution or allocation of rewards and punishments according to merit or desert. Punishment for a crime is then distributive justice. But that seems to be stretching the meaning of the word “distribution”. A judge in some case does not distribute anything from the offender to the victim and the victim recovers nothing (e.g. in the case of murder). Those are precisely the cases in which criminal justice is not corrective. I think it’s preferable to keep these concepts separated.
Criminal justice includes the work of the Courts, but also less formal corrective or reparative models, such as truth commissions, apologies etc. Transitional justice, some forms of transgenerational justice, mob justice or vigilante justice also fall under this header.
4. Procedural justice
Procedural justice, unlike the previous types, isn’t about certain just or fair outcomes (just distributions, contributions or punishments), but about fair procedures. The focus is on the processes of arriving at a certain decision (judicial, political etc.). The rules governing the fairness of trials are an example of procedural justice, as are the rules governing legislation in a democracy. People will differ over the fairness or correctness of the legal or political decisions, but they can agree on the fairness of the process. In many cases, defendants in criminal trials or losers in democratic elections may be disappointed in the outcomes but accept them nonetheless because they see that there was fairness in the process; for example, they were allowed to make their case in public with equal resources, there was an impartial judge who weighed the different arguments and so on.
5. Other types
Other types of justice include divine justice (usually a mix of distributive justice for the poor and criminal justice for the sinful), poetic justice (the fateful infliction of harm upon the harm-doer), instrumental justice (doing justice in order to achieve something else, e.g. deterrence) etc.
The link to equality
How are these different types of justice linked to equality?
Distributive justice is often seen as the most egalitarian type of justice, because most interpretations of distributive justice see it as a kind of equalizer of basic goods. Everyone needs a fair share of basic goods, and that means an equal share. Poverty reduction is typically seen as an exercise in distributive justice. However, distributive justice doesn’t need to be egalitarian. Aristotle for example claimed that justice wasn’t merely equality for the equal but also inequality for the unequal: we usually sense that there is an injustice when a teacher gives the same grades to everyone, the meritorious as well as the lazy. However, you could say that even this merit-based type of distributive justice implies equality, namely equality between reward and merit.
Contributive justice as well focuses on an equal contribution in life’s pleasant and unpleasant tasks. Regarding criminal justice the picture is more blurred. Originally, criminal justice focused heavily on equality. The biblical lex talionis – an eye for an eye – was an explicitly – and horrendously – egalitarian form of punishment. The wrongdoer should suffer the same injury as his victim. That’s not fashionable anymore, but still we see that criminal justice strives towards some degree of equality or at least proportionality or correlation between the type of harm inflicted and the nature or weight of the punishment. It’s unfair to impose a life sentence for the crime of not paying your debts, or a fine for murder. Strict equality is, of course, often impossible: you can’t execute Hitler 6 million times. But sometimes it’s possible – i.e. in the case of theft or property damages – and we can demand full correction or rectification from the criminal. Most of the time, some kind of proportionality is more appropriate, not only because we want to avoid cruel punishments but also because we don’t have any other choice.
Procedural justice as well relies heavily on equality: an equal right to call witnesses, equal weight given to testimony, equal duration of arguments, equal access to courts and media etc. Even poetic justice is a form of equality because the wrongdoer suffers the same harm as he inflicted on or intended for someone else. In the story of Esther, for example, Haman is executed on the gallows he prepared for someone else. Something similar can be seen in all examples of poetic justice.
So, whereas justice is not the same as equality, the links between these two concepts are quite strong.