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In December 2017, a Thai man named Phudit Kittitradilok was convicted of swindling 2,400 people out of 574 million baht (£13 million) in a Ponzi scheme that promised high return investments.

He was sentenced to a staggering 13,275 years in jail – an amount of time longer than the entire Neolithic era. But in actuality, thanks to Thailand’s penal code that limits prison sentences, Kittitradilok will only end up serving 20 years.

Still, there’s something about the idea of a long prison term that gives the impression that justice is being served. And while Kittitradilok’s case was mostly optics, plenty of people around the world really do spend their whole lives behind bars.

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For example, Terry Nichols, one of the accomplices in the 1995 Oklahoma City bombing, was given 161 life sentences with no possibility for parole.

But does a long prison sentence actually keep the streets safer? We considered the evidence.

Prison’s purpose

When a judge hands a sentence to someone who’s about to go to jail, there are four main factors that go into the decision. There’s retribution (punishing the person for doing something wrong), rehabilitation (correcting problematic behaviour), safety (keeping threats out of the community) and deterrence (making sure both they, and others, are scared off of breaking the law in the future).

There’s not a lot of evidence to suggest that the threat of prison time actually deters criminals from committing crimes (Credit: Alamy)

Some people – mostly criminal prosecutors, especially in countries like the US – believe that a long prison sentence checks all these boxes.

For instance, law bosses like US attorney general Jeff Sessions have been pushing for even harsher sentencing to keep violence and drugs off the streets. Advocates for tougher sentences say that long terms are more fitting punishments. They believe that it gives prisoners time to think about what they’ve done wrong, and that the thought of going back into prison is a motivator to stay on the straight and narrow.

But having prisoners serve long sentences can overcrowd prisons. It’s also extremely costly to tax payers. In a 2016 report released by the New York University School of Law, for instance, it was estimated that the US could save $200 bn (£147 bn) over 10 years if 40% of the country’s inmate population was reduced.

How long people should spend locked up divides opinion

Research shows that long prison sentences don’t really work on several fronts. In addition to being somewhat arbitrary (why 13,275 years?), there’s not a lot of evidence to suggest that the threat of prison time actually deters ex-prisoners from committing crimes. Criminals seem to value the future less than non criminals, one study found, meaning that long sentences can seem “arbitrary”, and only work to deter up to a point. Education played a role too, with lesser educated criminals seemingly less put off by a harsher sentence.

Studies also show that reoffending remains high. A 2009 study found that in the US, after three years in prison, 67% of the prisoners were rearrested for a new offence, 46.9% were reconvicted for a new crime, and 25.4% were resentenced to prison. In the UK, almost 70% are reconvicted within a year of release.  

One reason is because many criminals think they won’t get caught… even after they’ve been caught once, experts say. The threat of a long prison sentence does not therefore deter them from a criminal lifestyle.

Many criminals think they won’t get caught… even after they’ve already been caught once before (Credit: Getty Images)


As a result, while most reasonable people can agree that criminals must be held accountable for their crimes, how long people should spend locked up divides opinion. Perspectives differ spectacularly depending on who you ask, and where.

Findings compiled by the Justice Policy Institute in 2011 found that sentencing times for the same crime wildly vary across the globe. For example, in 2006, being convicted of robbery landed suspects in jail for an average of 16 months in Finland, but 72 months in Australia. Assault? Fifteen months in England and Wales, 60 months in the US.

There’s a trend to say there’s really no sentence that’s too long when it comes to violent offences

The US, in particular, is a near all-encompassing case study of what happens in a place with long prison sentences.

In the US, the number of prisoners has quadrupled since the 1970s – and now, as prison terms get longer, people are spending even more time in prison. Most prisoners are incarcerated for drug or violence-related offences.

Today, the US leads the world with more than 2.2 million people currently in prison, a system that costs the states $56.9 bn (£42 bn) per year.

“There’s a trend to say there’s really no sentence that’s too long when it comes to violent offences,” says Ryan King, a senior fellow at the Urban Institute’s Justice Policy Center in Washington. “That’s been a dominant force in our criminal justice system for over 40 years.”


Most prisoners in the US are locked up for drug or violence-related offences (Credit: Getty Images)

He points back to the late 1960s, a turbulent time in US history. The country was in the throes of the Vietnam War and the civil rights movement, which led to protests and riots. In turn, that led to unrest and fear among the population. Politicians capitalised on that anxiety. And they still do.

From that period the US saw an absolute explosion in prison population: from 200,000 in 1974 to more than 1,500,000 in 2002.

“It’s the lead on the 11 o’clock news. It is a key talking point for politicians running,” says King. “They can always go back to, ‘I’m gonna be tough on crime and keep you safe.’ A lot of these themes are really resonant in 2018.”

The US also has some of the longest prison sentences in the world due to its cultural values including an extreme emphasis on personal responsibility, religious belief in good and evil, and the idea that a community has the moral imperative to stamp out bad deeds. It may be little surprise that a common US argument in favour of long prison times is the old maxim “if you can’t serve the time, don’t do the crime.”

 “As a cultural matter, the US is dedicated to the idea of individualism – that people are accountable for their actions,” says Christopher Slobogin, director of the criminal justice programme at Vanderbilt University in Tennessee.

Law bosses in the US have been pushing for harsher sentencing in an attempt to keep violence and drugs off the streets (Credit: Getty Images)

Other societies might contextualise crime as more situational. But in the US, there’s a stronger sense that it stems from bad decision-making. “It ties into religious reasons,” Slobogin adds. He posits that “Americans are much more likely to believe there is such a thing as evil, and [that] we need to punish it.”

King says countries like the US needs to look at alternatives – more violence prevention so that crimes aren’t committed and people don’t end up in jail in the first place. “I don’t mean hiring more cops and prosecutors,” King says. “Relying on police coming in is a reactive response.

Doing something more proactive requires deeply investing in these communities.”

Term alternatives

So, are there alternatives to letting prisoners stew for decades? Norway shows some promising results. There, capital punishment was abolished in 1902 and life sentences in 1981. The maximum prison sentence is 21 years.

Like many prisons in Scandinavian countries, meanwhile, Norway’s eight-year-old Halden Prison takes a laissez-faire approach to incarceration that may shock many in nations with more hard-driving systems. It’s described as a maximum-security prison. But at Halden, cells and the commissary look like IKEA and Whole Foods, there are no barred windows or security cameras, and unarmed guards befriend the prisoners.

Officers will expect more of you in an open prison

It’s an extreme example, but there are many similar “open prisons” across the country.

Thomas Ugelvik, a criminology professor at the University of Oslo, says that these open prisons are cheaper, built on prisoner trust and, in some ways, may be tougher to do time in: more responsibility is expected of the prisoners. It’s almost like freedom, but the inmates still have sentences to serve.

These Norwegian prison sentences help lead to rehabilitation, something not always seen in long prison sentences. Research shows it has among the lowest rates of reoffending in the world – 20% compared to 67% in the US over two and three years of leaving prison, respectively. Even more surprising perhaps is that the average prison sentence length in Norway is only eight months.

When a judge hands out a prison sentence there are four main factors that go into the decision: retribution, rehabilitation, safety and deterrence (Credit: Getty Images)

Still, there’s a caveat. “Officers will expect more of you in an open prison,” Ugelvik says. “You have to go to work or school, exhibit the right positive attitude. Also, you can escape any time you want to, so in an open prison, you have to choose to stay every day. You have to live with temptation.”

The image we get from television is that there are a lot of serial rapists and killers – fortunately, they are a minority

Ugelvik adds that there’s no real perimeter security in such places and that often, prisoners have been transferred there from a more high-security facility. The threat of being shipped back there if you act out is a successful deterrent, he says.

Low security isn’t for everyone, though, and when the system takes a chance on someone, it’s a result of strict risk assessments. The belief, Ugelvik says, is that prisoners thrive on trust.

“When you have spent time in high security and get a transfer to a more open regime, it feels like the system trusts you at least a little bit,” he says. “You have to be able to put your own imaginary walls around yourself in a low-security prison, and most prisoners, most of the time do that successfully.”

Harshest penalty

Another misconception is the idea that the most severe punishment – the death penalty – might deter the worst crimes.

US president Donald Trump said in April 2018 that he wanted the death penalty for drug dealers. (King says this is likely for retribution, as research has shown that capital punishment isn’t an effective deterrent).

If you don’t think you’re going to get caught in the first place, it doesn’t really matter

“With the current crisis of the heroin and opioid epidemic [in the US], we’re once again seeing the executive branch trying to make it about the severity of the sentence – so that if we’re going to give the death penalty, maybe you won’t engage in this crime,” says Ashley Nellis, a professor and senior research analyst at the Sentencing Project, a Washington-based non-profit that pushes for criminal justice reform.

“But if you don’t think you’re going to get caught in the first place, it doesn’t really matter,” she says.

Of course, the most heinous crimes are a slightly different matter. It is hard to argue against a long sentence for a serial killer or rapist – especially for the family members involved. This is perhaps where the punishment angle of prison plays a stronger role in the eyes of the public.

At Halden Prison in Norway unarmed guards mingle with prisoners. It is often called the world's most humane prison (Credit: Getty Images)

That being said, violent crimes are the minority of all crimes. “The problem is, the image we get from television is that there are a lot of serial rapists and killers – fortunately, they are a minority,” says Marcelo Aebi, criminology professor at the University of Lausanne in Switzerland.

When it comes to drug offences at least, the best way to overcome the downsides of long prison sentences may be to look at the issues that resulted in prison time. The hope here is that it could prevent people from entering into the criminal world.

Motivation is key, and no one believes that you can force someone into positive change if they don’t want it themselves

That’s why Nellis explains that the criminal justice system doesn’t have to be the only response to illegal behaviour, “particularly for non-violent drug and property offences. Usually there’s an underlying addiction. We can address the addiction with a more evidence-based approach – one that deals with prevention and intervention and treatment, rather than a criminal justice system, which has [little] expertise on drug addiction at all. We can make a bigger impact.”

Life in prison is an extreme punishment, and in the grand scope of crimes, drug offences might not warrant such extreme measures, especially as research shows that the threat of such long sentences doesn’t actually deter people from committing these crimes.

Societies and politics also differ from country to country, so implementing a Norway-esque system will have different results in different places, especially as much depends on the help available while incarcerated.

Therefore, when it comes to getting out of prison quickly, even in a country with eight-month terms, some of it is still up to the individual.

“Of course, motivation is key, and no one believes that you can force someone into positive change if they don’t want it themselves,” says Ugelvik.

“They reach out a hand, but prisoners have to choose to grab hold of that hand for it to work.”


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