O'Mahony, Paul (2014) Psychology and the penal system. Working Notes, Issue 73: The Rights of Workers – Then and Now,

O'Mahony, Paul (2008) Key issues for drugs policy in Irish prisons Dublin. Dublin: Drug Policy Action Group.

O'Mahony, Paul and Cassin, Sean (2007) Criminal justice drug policy in Ireland: policy paper 1. Dublin: Drug Policy Action Group.

O'Mahony, Paul (2004) Drugs, crime and punishment: an overview of the Irish evidence. Administration, 52, (2), pp. 3-35.

O'Mahony, Paul (2002) Children, young people and crime in Britain and Ireland: from exclusion to inclusion- 1998. A brief overview of juvenile justice in Ireland. Edinburgh: Scottish Executive.

O'Mahony, Paul (2002) A survey of medicines prescribed within the prison system. (Unpublished)

O'Mahony, Paul (1997) Community vigilantism: curse or cure? Doctrine and Life, 47, (6), pp. 325-333.

O'Mahony, Paul (1997) The drug culture and drug rehabilitation within the prison system. In: The Management of the Drug Offender in Prison and on Probation, Dublin. (Unpublished)

O'Mahony, Paul (1997) Drug related health problems and other health issuse. In: Mountjoy prisoners: A sociological and criminological profile. Dublin: Stationery Office. pp. 105-115.

O'Mahony, Paul (1997) Independent evaluation of the Inter Agency Drugs Project (Dublin). (Unpublished)

O'Mahony, Paul (1997) Mountjoy prisoners: A sociological and criminological profile. Dublin: Stationery Office.

O'Mahony, Paul (1997) Substance abuse. In: Mountjoy prisoners: A sociological and criminological profile. Dublin: Stationery Office. pp. 93-104.

O'Mahony, Paul (1996) Fix and quick fix: the illicit drugs crisis. In: Criminal chaos: seven crises in Irish criminal justice. Dublin: Round Hall Sweet & Maxwell. pp. 41-86.

O'Mahony, Paul and Barry, Michael (1992) HIV risk of transmission behaviour amongst HIV infected prisoners and its correlates. British Journal of Addiction, 87, pp. 1555-1560.

O'Mahony, Paul (1990) Abstinence in treated and untreated opiate abusers: a study of a prison sample. Irish Journal of Psychological Medicine, 7, (2), pp. 121-123.

O'Mahony, Paul (1989) An investigation of attitudes and information on AIDS. Irish Journal of Psychology, 10, (1), pp. 21-38.

O'Mahony, Paul (1987) Drug abusers in Mountjoy prison: five years on. (Unpublished) Dublin: Department of Justice.

O'Mahony, Paul (1984) A survey of drug abusers in Irish prisons. Prison Information Bulletin, 3, pp. 11-14.

O'Mahony, Paul and Smith, E. (1984) Some personality characteristics of imprisoned heroin addicts. Drug and Alcohol Dependence, 13, (3), pp. 255-265.

O'Mahony, Paul and Gilmore, Thomas (1982) Drug abusers in the committal prisons: a survey. Dublin: Stationery Office.