R v Limon [2022] EWCA Crim 39

Having regard to Article 7 of the European Convention of Human Rights, what was the correct approach to sentencing when the maximum sentence available to the court, if the offender had been convicted at the time of the offences, would by reason of his age have been subject to a restriction which did not apply to an adult? And how was the sentence affected by the Children Guideline which came into effect in 2017?