Murphy, Tim and O'Mahony, Paul and O'Shea, Marie (1998) Ecstasy use among young Irish people: a comparative and interdisciplinary study. (Unpublished) Cork: National University of Ireland, Cork. Centre for European Social Research and Department of Law.

Nugent, J Kevin and Lester, Barry M and Greene, Sheila and Wieczorek-Deering, Dorith and O'Mahony, Paul (1996) The effects of maternal alcohol consumption and cigarette smoking during pre acoustic cry analysis. Child Development, 67, (4), pp. 1806-1815.

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 (Unpublished)

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

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

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

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

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

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

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 (1997) Mountjoy prisoners: A sociological and criminological profile. Dublin: Stationery Office.

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 (Unpublished)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 (1987) Drug abusers in Mountjoy prison: five years on. (Unpublished) Dublin: Department of Justice.

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 (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) Substance abuse. In: Mountjoy prisoners: A sociological and criminological profile. Dublin: Stationery Office. pp. 93-104.

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

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

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