It really depends on what country your from and what type or how harsh the law is where you live or want to know about.
But some international reasons why you can get a life sentences are:
Murder
Importation/Exportation and/or dealing of illicit drugs
Smuggling of a prohibited item or substance into a country
For a whole table of Countrys and how you can get a life sentence according to the law see the below link:
A life sentence is for life.
There have been cases where with certain circumstances a murderer gets a suspended sentence (probation) and serves no time.
Natural life sentence is when the prisoner stays in prison for a life time.
In criminal cases, judges may sentence someone to life plus years to ensure that the person serves a significant amount of time in prison, even if they are eligible for parole. This type of sentence is meant to reflect the seriousness of the crime and protect society from potential harm.
A life sentence plus 30 years in prison means the individual will spend the rest of their life in prison, with an additional 30 years on top of that.
A life sentence is the length of the convicted person's life.
Read: life
51 years
Sorry, there will probably be no parole for your friend with a life sentence.
This depends on the jurisdiction in which you are charged. The minimum could be:Community ServiceProbationFinesRestitutionMandatory Prison Sentence
A life sentence typically means the individual will spend the rest of their life in prison with no possibility of parole.
A life sentence in the state of Ohio is a minimum of 30 years, to a maximum of 75 years for a natural life sentence.