Why is there such a thing as concurrent sentencing Please see detail.

Concurrent sentencing is usually applied when someone is convicted of charges that are similar in nature (e.g. crime A shares elements with crime B). So, it makes sense for them to use it in that case. Other times, it’s through a plea bargain. Most states put it to the discretion of the presiding judge. I’m not sure what you’re asking. Are you asking whether it’s good policy?

Note: you’re kind of asking a legal question so the “legalese” is going to come in.

Concurrent sentencing exists because it is thought that serving the sentence for multiple crimes at the same time is sufficient punishment.

@bobloblaw have you ever heard of a case that was just preposterous. Someone kills two people and gets a sentence for one?
@marinelife the question is why is it so?