Before we demand longer prison sentences it could be useful to compare rates of imprisonment in different countries
World Prison Brief, www.prisonstudies.org compares rates of imprisonment per 100,000 population.
For England and Wales, the figure is 138, this compares well with USA which has the highest rate of 550 , Turkey at 374 and Albania at 177, but is higher than most European countries such as Spain at 116, France at 106, Italy at 96, Belgium at 91, Ireland at 86, Sweden at 74, Switzerland at 72, Germany at 67, Norway at 54 and Finland at 51.
Do we really want to be more like the USA? The USA not only has the highest rate of incarceration, but many states still have capital punishment yet the murder rate in the USA is four times higher than in the UK.
www.nationmaster.com/country-info/compare/United-Kingdom/United-States/Crime/Violent-crime