Section 6 of the Probation of Offenders Act, 1958 applies when the offence is punishable with:

Section 6(1) applies when a person under twenty-one is found guilty of "an offence punishable with imprisonment (but not with imprisonment for life)". Offences punishable with death or life imprisonment are outside it, and an offence punishable with fine alone does not raise the question of imprisonment.