Nor is an increase in the gravity of offences responsible for the rise in custodial sentences.
The report concludes that the gravity of offences committed by both sides requires judicial proceedings "at the national and international levels".
And it means sentences that take into account appropriate factors like the gravity of the offence, the specific circumstances of the crime, and the age and maturity of the offender.
In cases of severe offences by children, measures proportionate to the circumstances of the offender and to the gravity of the offence may be considered, including considerations of the need of public safety and sanctions.
It said, "Earls and barons shall be fined only by their equals, and in proportion to the gravity of their offence".
All that was held at Strasbourg was that the ban was disproportionate as it applied irrespective of the length of the sentence or the gravity of the offence.
Prisoner enfranchisement can be made conditional on the nature or gravity of the offence, the ECHR has said; it is for the national authorities to decide.
"I think we have to combat this by educating the players and by getting them to understand the gravity of the offence and what it does for the well being of the game.
In a judgment released on Tuesday, Justice Raynor Asher dismissed the appeal and said he had to decide whether the consequences of a conviction were out of all proportion to the gravity of the offence: "In my view they are not".
The sentence was proportionate to the gravity of the offence, Pangalangan told Mahdi, and would have a "deterrent effect on others tempted to carry out similar acts in Mali or elsewhere".
"While we fully understand the gravity of the offence in question in this particular case, we also recognise that there is a value to wider society in enabling offenders to be rehabilitated through a return to their chosen line of employment.
