"Sadly, miscarriages of justice happen. They always have and they always will," he says. "But when we have a situation where an individual has been incarcerated for whatever reason for incorrect evidence or incorrect judgements, we should ensure that they are compensated for that."
There was also a 286% increase in the number of the most dirty streets, graded "D" for cleanliness.Smoking-related litter and food and drinks packaging were the most common types of litter found.
In Cardiff, where the council spends more than £7m a year on street cleaning, the worst performing "D" streets were found in some of the city's most deprived neighbourhoods, including Ely, Roath, Grangetown and Splott.Splott resident Malcolm Davies said the level of litter in and around his home was "just a nightmare"."I live in the end house and we get whatever is chucked - fruit peelings, wrapping paper blowing into our garden," he said.
"We put it in our own bins to keep the garden tidy - but I'm getting too old now for all this litter picking."Fly-tipping was another problem, he said, adding he would like to see cameras installed to deter offenders.
"We've had it all - beds, settees, cabinets - everything," Mr Davies added.
"It's not very nice if you've got people coming down to visit, and all they can see is rubbish."During the last five years, the sharpest increase has been recorded in the north-west of England.
After requesting data from 25 councils in the region, the BBC has learned:A Department for Education spokesman said SEND children and young people had been "for too long let down", adding the government was "ready to speak to any council that is experiencing financial difficulties".
Several parents told BBC News they had been forced to take their children out of mainstream schools because they could not accommodate their EHCPs.Ruth said her eight-year-old son Samuel, who is autistic and has attention deficit hyperactivity disorder (ADHD), had not been in a classroom since January.