YES: Crimes committed many years ago should simply be forgotten as pursuing resolution for them is no longer viable or advantageous to concerned parties.
The perpetrators of crimes committed long ago may already have passed on from life and the best closure for victims and society is to forget them rather than expend resources pointlessly in pursuing the case.
If the criminals in a case have already served an adequate sentence for their crimes, the act of forgetting their past actions should be made, as it provides perpetrators, victims and society with adequate closure.
Some crimes may have been left unresolved for a long period of history, and forgetting them is a practical move since the societal conditions between the time of the crime and our present day are so drastically different that it becomes impractical to try the case.In such cases, the descendants or successors of the criminal may exercise discretion in providing suitably contrite apologies or an admission of guilt to close the matter, such as the Catholic Church’s admission of guilt in 1992 over its wrongful sentencing of Galileo Gallilei, which originally took place in 1633.
NO: Crimes committed many years ago should not be forgotten and pursuing resolution for them remains important to concerned parties and justice.
The heinous nature of some crimes, such as crimes against humanity, that were committed long ago should not be forgotten as doing so will unfairly absolve not just the criminals but the society which condoned them.
Criminals who have escaped due justice, such as fleeing across borders, must never be forgotten or forgiven by society as we have a moral and legal duty to bring the crime to trial and provide justice for all victims concerned.
Some crimes may have been committed in historical times but continue to cause harm today, making it imperative for involved parties to seek legal resolution as failure to do so imposes grave problems, such as the continued controversy over looted Chinese artwork from the Boxer Rebellion which remains and continues to be exhibited in France.