The justice secretary has said he wants to end short prison sentences because they do not work and hopes that technology and more community sentences will provide better alternatives to jail.In a break with the “prison works” mantra of past Conservative governments, David Gauke outlined the plans that reformers hope will be more than just talk.Gauke used a central London speech to point out that Britain jailed more people compared with other European countries and that those sentenced to short terms in prison had high reoffending rates.