what principle states that the punishment should fit the crime
Punishment A principle often mentioned with respect to the degree of punishment to be meted out is that the punishment should match the crime.[22][23][24] One standard for measurement is the degree to which a crime affects others or society. Measurements of the degree of seriousness of a crime have been developed.[25] A felony is generally considered to be a crime of "high seriousness", while a misdemeanor is not.
Capital punishment by the United States federal government It can be handed down for treason, espionage, murder, large-scale drug trafficking, or attempting to kill a witness, juror, or court officer in certain cases; but all inmates currently under federal death sentences were condemned for aggravated murder. Executions performed by the federal government are infrequent compared to those performed by state governments.[1][2]