Innocent prisoner's dilemma
The innocent prisoner's dilemma, or 'Parole Deal', is a detrimental effect of a legal system which does not recognize that its judgements may be imperfect. When an innocent person is wrongly convicted of a crime, legal systems which need the individual to admit guilt, for example as a prerequisite step leading to parole, punish an innocent person for his integrity, and reward a person lacking in integrity. There have been many cases where innocent prisoners were given the choice between freedom, in exchange for admitting guilt, and remaining imprisoned and telling the truth. Individuals have died in prison rather than admit to crimes which they did not commit.
It has been demonstrated in Britain that prisoners who freely admit their guilt are more likely to re-offend than prisoners who maintain their innocence, and parole officers perceive prisoners claiming innocence to be more likely to re-offend.
United States law professor Daniel Medwed says convicts who go before a parole board maintaining their innocence, are caught in a Catch-22 which he calls "the innocent prisoner’s dilemma". A false admission of guilt and remorse by an innocent person at a parole hearing may prevent a later investigation proving their innocence.
Detriment to individuals
In the United Kingdom
Michael Naughton, founder of the Innocence Network UK (INUK) says work carried out by the INUK includes research and public awareness on wrongful convictions, which can effect policy reforms. Most important is the development of a system to assess prisoners maintaining innocence, to distinguish potentially innocent prisoners from the prisoners who claim innocence for other reasons like "ignorance, misunderstanding or disagreement with criminal law; to protect another person or group from criminal conviction; or on 'abuse of process' or technical grounds in the hope of achieving an appeal." The system he says, is being adopted by the prison parole board and prison service, for prisoners serving "indeterminate sentences (where the prisoner has no release date and does not get out until a parole board decides he or she is no longer a risk to the public). Previously, such prisoners were treated as 'deniers' with no account taken of the various reasons for maintaining innocence, nor the fact that some may actually be innocent." Those prisoners are unable to achieve parole unless they undertake offence-behaviour courses that require the admission of guilt as a prerequisite.
The murder of Linda Cook was committed in Portsmouth on 9 December 1986. The subsequent trial led to a miscarriage of justice when Michael Shirley, an 18 year-old Royal Navy sailor, was wrongly convicted of the crime and sentenced to life imprisonment. After serving the minimum 15 years, Shirley would have been released from prison had he confessed the killing to the parole board, but he refused to do so and said: "I would have died in prison rather than admit something I didn't do. I was prepared to stay in forever if necessary to prove my innocence." (Shirley's conviction was eventually quashed by the Court of Appeal in 2003, on the basis of exculpatory DNA evidence.)
The Stephen Downing case involved the conviction and imprisonment in 1974 of a 17-year-old council worker, Stephen Downing, for the murder of a 32-year-old legal secretary, Wendy Sewell. His conviction was overturned in 2002, after Downing had served 27 years in prison. The case is thought to be the longest miscarriage of justice in British legal history, and attracted worldwide media attention as the "Bakewell Tart" murder. The case was featured in the 2004 BBC drama In Denial of Murder Downing claimed that if he falsely confessed he would have been released over a decade earlier. Because he did not admit to the crime he was classified as "IDOM" (In Denial of Murder) and ineligible for parole under British Law.
In the United States
In the United States the reality of a person being innocent, called "factual innocence" is not sufficient reason for the justice system to release a prisoner, and once a verdict has been made, it is considered rare for a court to reconsider evidence of innocence which could have been presented at the time of the original trial. Decisions by the State Board of Pardons and Paroles regarding its treatment of prisoners who may be factually innocent have been criticised by the international community.
Herbert Murray was convicted of murder in 1979 said "When the judge asked me did I have anything to say, I couldn't say, because tears were coming down and I couldn’t communicate. I couldn't turn around and tell the family that they got the wrong man." The judge said he believed the defense’s alibi witnesses; however, the judge was required by law to respect the jury’s decision. After being locked up for 19 years, his parole officer said "Nineteen years is a long time. [....] But you’re no closer to the rehabilitative process than when you first walked into prison. The first step in that process is the internalization of guilt. You need to do some serious introspection Mr. Murray and come to grips with your behaviour." Murray agreed with the parole officer, but maintained his innocence: "I agree! But again, I just didn’t do it."
In a news interview, Herbert Murray says he went before a parole board 4 times, maintaining his innocence until the fifth, "I said what the hell, let me tell these people what they want to hear." he admitted to the parole board that he committed the crime and was taking responsibility "I felt like I sold my soul to the devil. Because before, I had that strength, because I stood on the truth. [...] I became so desperate to get out, I had to say something. I had to say something because what I said before didn’t work." his parole was denied. After 29 years imprisoned, Medwed’s Second Look clinic, a group dedicated to the release of innocent prisoners, assisted lawyers in his eighth parole board hearing which was successful, releasing him onto indefinite parole. Overturning the original conviction would be hampered by his admissions of guilt at his parole hearings. 
Timothy Brian Cole (1960–99) was an African-American military veteran and a student wrongly convicted of raping a fellow student in 1985. Cole was convicted by a jury of rape, primarily based on the testimony of the victim, Michele Mallin. He was sentenced to 25 years in prison. While incarcerated, Cole was offered parole if he would admit guilt, but he refused. "His greatest wish was to be exonerated and completely vindicated", his mother stated in a press interview. Cole died after serving 14 years in prison.
Another man, Jerry Wayne Johnson, confessed to the rape in 1995. Further, Mallin later admitted that she was mistaken as to the identity of her attacker. She stated that investigators botched the gathering of evidence and withheld information from her, causing her to believe that Cole was the perpetrator. Mallin told police that the rapist smoked during the rape. However, Cole never smoked because of his severe asthma. DNA evidence later showed him to be innocent. Cole died in prison on December 2, 1999, ten years later, a district court judge announced "to a 100 percent moral, factual and legal certainty" that Timothy Cole did not commit the rape. He was posthumously pardoned.
Detriment to the society
Gabe Tan reported a British conference in 2011, "the dilemma of maintaining innocence", concluded "Denial is not a valid measure of risk. In fact, research has shown that prisoners who openly admit to their crimes have the highest risk of re-offending."
In 2011, Dr Michael Naughton suggested the ongoing legal presumption of guilt in the British system, specifically the focus on new evidence by the Criminal Cases Review Commission, rather than an examination of serious problems with evidence at original trials, meant in many cases “that the dangerous criminals who committed these crimes remain at liberty with the potential to commit further serious crimes.”
Robert A. Forde cited two studies at the conference, one, a ten year study of 180 sex offenders by Harkins, Beech and Goodwill found prisoners who claimed to be innocent were the least likely to be re-convicted, and that those who 'admitted everything', claiming to be guilty, were most likely to re-offend. He also told the conference research by Hanson et al. in 2002, the denial by the prisoner of their offences had no bearing on their likelihood of re-offending, however they are perceived by the parole officers as more likely to re-offend because of their denials.
- "The 'Innocent Prisoner's Dilemma' - Video Library - The New York Times". Video.nytimes.com. http://video.nytimes.com/video/2010/06/04/nyregion/1247467961918/the-innocent-prisoner-s-dilemma.html. Retrieved 2012-05-31.
- "The Innocent Prisoner's Dilemma: Consequences of Failing to Admit Guilt at Parole Hearings by Daniel Medwed :: SSRN". Papers.ssrn.com. http://papers.ssrn.com/sol3/papers.cfm?abstract_id=960125. Retrieved 2012-05-31.
- Students for justice: the Innocence Network | UK news | guardian.co.uk
- Olden, Mark (2003-08-19). "Justice - but at what cost?". The Independent. p. 10. http://www.independent.co.uk/news/media/justice--but-at-what-cost-536404.html. Retrieved 2009-08-14.
- Shaw, Danny (2003-07-02). "Sailor awaits murder appeal ruling". BBC News. http://news.bbc.co.uk/1/hi/uk/3039608.stm. Retrieved 2009-08-14.
- "DNA Evidence Quashes Murder Conviction". Police News. 29 June 2003. http://www.policeoracle.com/news/DNA-Evidence-Quashes-Murder-Conviction_1665.html. Retrieved 18 September 2010.
- Chaytor, Rod (5 July 2003). "I'd rather have died in jail than admit a murder I didn't do". Daily Mirror (London): p. 4.
- New Statesman - The editor, the murder and the truth
-  BBC News 15 January, 2002 Downing murder conviction quashed
- The new injustices:from false confessions to false allegations
-  BBC Press Office 2 February 2004
- "In Denial of Murder (2004) (TV)". www.imdb.com. http://www.imdb.com/title/tt0381272/. Retrieved 2008-07-23.
- "Wrongfully Convicted Prisoners Often Denied Parole". Mindgate Media. http://mindgatemedia.com/lesson/wrongfully-convicted-prisoners-often-denied-parole/. Retrieved 2012-05-31.
- Lavandera, Ed (2009-02-05). "Family seeks to clear man who died in prison". CNN. http://www.cnn.com/2009/CRIME/02/05/texas.exoneration/index.html. Retrieved 2009-02-05.
- "Hearing could lead to exoneration in Cole rape case". News 8 Austin. 2009-02-06. http://www.news8austin.com/content/your_news/default.asp?ArID=231175. Retrieved 2009-02-06.
- Goodwin, Wade (2009-02-05). "Family Of Man Cleared By DNA Still Seeks Justice". National Public Radio. http://www.npr.org/templates/story/story.php?storyId=100249923. Retrieved 2009-02-05.
- Potential Wrongful Convictions: Failed by the Criminal Cases Review Commission | INUK
- Blue, Ethan (2012). Doing Time in the Depression: Everyday Life in Texas and California Prisons. NYU Press. p. 221. ISBN 0814723160. http://books.google.com/books?id=DIfpeK4fsE8C&pg=PA221&dq=Innocent+prisoner's+dilemma&hl=en&sa=X&ei=nbjQT-eBJoSv8gP2ybyzDA&ved=0CG0Q6AEwCQ#v=onepage&q=Innocent%20prisoner's%20dilemma&f=false. Retrieved 2012-06-07. "... this surely led to what recent critics have called the “innocent prisoner's dilemma”: knowng that maintaining innocence to a parole board (and therefore not demonstrating remorse) will lead to a longer time in prison."
- New York Times video about the Herbert Murray case