Personal profile



I'm a criminologist working at the Applied Criminology and Policing Centre (ACPC) at the University of Huddersfield. My research interests have centred on gaining a better understanding of why people do and don't report crime incidents and other pressing concerns to available duty holders. Most recently this has included investigating the psychosocial barriers and facilitators for 'intimates' reporting of concerns about radicalisation of family members/friends to the authorities, and more widely, that of crime victims and witnesses (especially hate crime victims) reporting behaviour to authorities and third-party reporting providers. I've also examined police officer's reporting behaviour of fellow officer malpractice (an element of my forthcoming PhD.) and why this so often fails to occur. In undertaking this type of work the aim is to develop better policy and practice responses to increase the willingness to report throughout the respective populations. 

For mine and colleagues latest counter-terrorism research please see my Centre for Research and Evidence in Security Threats (CREST) profile:  Also, our recent and ongoing work for the EU's DG Move on how to protect large transport hubs from terrorist attack and serious crime:

My other work studies prejudice related offending; the nature and aetiology of radicalisation and extremism; and the suitability and effectiveness of interventions to address these difficult problems. I have undertaken (with colleagues) work in these areas supported by the YJB; OSCT; EU FRA, CREST, and other funders. All of this provides some basis for commentary on the current practice and policy landscape, something which is both emerging and work in progress with co-authors.

Myself and colleagues at Kirklees YOT have recently set up the West Yorkshire YOTs Social Media and Violence Research Group. We recently received funding from the West Yorkshire PCC's Office to expand our earlier pilot project (examining the relationship between young offender's social media use and offending behaviour, particularly violent offending) across West Yorkshire with our new partner YOTs.  We will be progressing this in the months ahead.

Other strands of my work are more methodologically quantitatively based, for instance, I have used survival analysis (Kaplan-Meier curves) and formal concept analysis (with non-Euclidean spaces) to examine the effectiveness of short-term prison inmate enhanced resettlement on release ('re-entry') programmes (Christmann & Wong, 2016; Christmann, 2007).

Regards grant capture, I have personally helped generate in excess of £3.55 million in research income since 2005 (5 sole £274,000; 8 joint £358,000; 8 collaborative  £2.92million).

Research Dissemination

I have given numerous keynote addresses on issues of radicalisation and counter-terrorism, including at:

  • The International Union of Railways’ (UIC) Security Division 11th in Paris;
  • The United States Institute of Peace, in Washington DC (USIP); and 
  • The Work Foundation in London (closed session attended by national and international representatives of government, CT police, security services and intelligence agencies) (with colleagues)

Other keynote addresses on hate crime issues include:

  • Public Policy Exchange conferences (2016;2015), London; and
  • Sheffield Hallam University Hate Crime Reporting Seminar (with K. Wong & M. Rogerson, Sept. 2016).
  • Roundtable discussions at Equality and Human Rights Commission 2/2016; 9/2016).

In addition, I was an Invited delegate to the United Nations in Geneva to a ‘Special Day of Discussion on the ‘Rights of Children who have a Parent in Prison’ (9/2011) on behalf of COPING Project.


I am a Fellow of the Higher Education Academy and have over 11 years of teaching experience in criminology, delivering lectures, seminars and supervising undergraduate and post-graduate dissertations (currently I have three MRes completions).

I teach the following subject areas:

  • Criminological theory
  • Research methods
  • Media and crime and understanding/analysing crime data

Peer review

I was invited to be an 'Expert Reviewer' by the Research Executive Agency of the European Commission (REA) to assess the 2016-2017 Work Programme, part of Horizon 2020, evaluating the Call topic:  Contemporary radicalisation trends and their implications for Europe.

I have also undertaken peer review for research grant councils (ESRC; Big Lottery Fund; BMJ Open); a number of academic journals and book plans for several publishers.


  • I sit on the Critical Information and Infrastructures Security (CRITIS) Program Committee (HQ Offices, Paris).
  • I sit on the West Yorkshire Cyber Independent Advisory Group.
  • I sit on the Editorial Advisory Board for The British Journal of Community Justice

Research Expertise and Interests

  • Radicalisation (the causes of radicalisation; the effectiveness of interventions with 'at risk groups' and radicalised individuals);
  • Hate crime offending and hate crime policy;
  • Offender resettlement and desistance;
  • Repression Research;
  • The unintended consequences of the criminal justice system.


  • Religious and Political Violence
  • Islamic Influenced Radicalisation
  • Disengaging Radicalisation and Violent Extremism
  • Hate Crime
  • Patterns of Crime
  • Policing of Social Movements
  • Prostitution
  • Intersections of Moral, Legal, and Political Philosophy

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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hate crime Social Sciences
prisoner Social Sciences
radicalization Social Sciences
community Social Sciences
resettlement Social Sciences
radicalism Social Sciences
justice Social Sciences
anxiety Social Sciences

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2003 2018

  • 14 Commissioned report
  • 12 Article
  • 4 Chapter
  • 2 Book/Film/Article review
1 Citations

Hopes and Fears: Community Cohesion and the ‘White Working Class’ in One of the ‘Failed Spaces’ of Multiculturalism

Thomas, P., Busher, J., Macklin, G., Rogerson, M. & Christmann, K. Apr 2018 In : Sociology. 52, 2, p. 262-281 20 p.

Research output: Contribution to journalArticle

Open Access
multicultural society
working class
accompanying medium

Hate crime victimisation

Wong, K. & Christmann, K. 27 Apr 2017 Handbook on Victims' Issues in Criminal Justice. Roberson, C. (ed.). Routledge, p. 102-117 16 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

hate crime
system model
Open Access
number of children

Activities 2004 2018

  • 9 Invited talk
  • 4 Oral presentation
  • 1 Participating in a conference, workshop, ...