In a broken Britain, the Tories zero in on shoplifters stealing Calpol and food for their children | Owen Jones

These thefts are crimes of poverty. Ministers' threats to send culprits to prison will never solve them

Is an ever fiercer crackdown on the misdemeanours of the poor really justice? When a government minister suggests building new prisons to lock up shoplifters, Tory priorities are revealed in technicolour: that war should be waged on the symptoms, rather than the causes, of poverty. This is a tradition as British as drinking tea or Morris dancing. When the economy tanked after the 1720 South Sea bubble" collapse, the so-called Black Act was passed, imposing the death penalty on the overwhelmingly poor Britons driven by hunger who poached animals in private parks in order to survive. Today's justice system spares offenders the gallows, but it's driven by the same class vengeance that defined it back then: witness how you're 23 times more likely to be prosecuted for benefit fraud than tax fraud, even though the latter costs the economy nine times more.

The Tories' plan to cling on to power is now abundantly clear: appeal to the worst instincts of the electorate. Proffering mandatory prison sentences as a solution to persistent shoplifting is part of that grim package. In practice, that means scooping up more largely poor, often traumatised citizens, and locking them up in institutions so overcrowded that their staff's trade union describes them as a powder keg waiting to blow". That shoplifting is indelibly linked to poverty is beyond debate. Last year, even the new chief inspector of constabulary declared that officers should use discretion" in prosecuting those who steal so they can eat, adding that whenever you see an increase in the cost of living or whenever you see more people dropping into poverty, I think you'll invariably see a rise in crime." He was correct: shoplifting has more than doubled in the last six years, reaching a staggering 8m incidents last year.

Owen Jones is a Guardian columnist