PENAL reformers have urged the government to build on efforts to reduce the prison population after it led to a fall in assaults, self-harm and suicide.

The Howard League for Penal Reform made the call as Ministry of Justice (MoJ) figures revealed that as the prison population fell by 1 per cent in the year to March 2026 incidents of self-harm fell by 11 per cent in men’s and 4.5 per cent in women’s prisons.

The figures also show a 10 per cent fall overall prison deaths in the year to June 2026, including an 18 per cent decrease in “self-inflicted” deaths.

Arguing that the figures show “addressing overcrowding can help to protect staff and save lives,” the Howard League’s Andrew Neilson said: “A new ministerial team now has the chance to build on this progress.

“MoJ projections indicate that the prison population will rise in the years to come, but politicians have the power to change this. 

“Imagine what could be achieved if the billions earmarked for new prisons were invested in housing, education and social care instead.”

The MoJ was contacted for comment.