How to Become a Criminal Psychologist in the UK
Criminal psychologists assess and treat people who have offended, write risk reports for parole boards and courts, and run programmes that aim to reduce reoffending. In the UK this work is done mainly by forensic psychologists in prisons, the NHS, secure hospitals and probation settings. Offender profiling for police investigations is a very small part of the field.
"Criminal psychologist" is not a protected title, but "forensic psychologist" is, and you must be registered with the HCPC to use it. The realistic route is a psychology degree, a specialist master's and two or more years of supervised practice.
Quick facts
- Starting salary
- £26,000 - £31,000
- Mid-career salary
- £38,000 - £54,000
- Senior salary
- £65,000 - £90,000+
- Work environment
- Work is typically split between secure forensic facilities, police offices, and courtrooms.
- Time to entry
- 3 - 7 years
- Degree required
- Required
- Category
- Mental Health and Therapy
Compare pay across careers in the UK salaries by career report.
What a Criminal Psychologist does
Professionals in this field study the motivations and behaviours of criminals to assist in investigations and legal proceedings.
- Forensic Profiling - Evaluating evidence at a crime scene to build a psychological profile of an unknown offender.
- Rehabilitation Specialist - Developing treatment programmes to reduce reoffending rates among incarcerated individuals.
- Expert Witness - Providing psychological testimony in court regarding an individual's mental state or fitness to plead.
How to become a criminal psychologist in the UK
First get the Graduate Basis for Chartered Membership (GBC) through a BPS-accredited psychology degree, or a BPS-accredited conversion course if your degree is in another subject. Next, complete a BPS-accredited MSc in forensic psychology (Stage 1), followed by Stage 2 of the BPS Qualification in Forensic Psychology: at least two years of supervised practice, often in a trainee forensic psychologist post. An HCPC-approved doctorate in forensic psychology is the alternative. Either route leads to registration with the HCPC as a forensic psychologist.
- Take a BPS-accredited psychology degree, or a BPS-accredited conversion MSc if your first degree is in another subject, so you hold the Graduate Basis for Chartered Membership.
- Get relevant experience as an assistant psychologist, psychological assistant, prison officer, support worker in a secure hospital or volunteer with an offender or victim support charity.
- Complete a BPS-accredited MSc in forensic psychology, which counts as Stage 1 of the forensic training route.
- Apply for trainee forensic psychologist posts in prisons, the NHS or private secure hospitals, where you complete BPS Stage 2 under a supervisor, or apply for an HCPC-approved forensic psychology doctorate.
- Build competence in risk assessment, psychological formulation, delivering interventions, report writing and giving evidence, all of which are assessed during supervised practice.
- Register with the HCPC as a forensic psychologist once you qualify, then keep up continuing professional development to stay on the register.
| Route | How long | Cost | Best for |
|---|---|---|---|
| Psychology degree, MSc, then BPS Stage 2 | About 6-7 years in total | Tuition fee loan, then postgraduate fees | The standard route to HCPC registration |
| Conversion MSc, then forensic training | About 4-5 years after your first degree | Postgraduate fees | Graduates in other subjects |
| HCPC-approved forensic psychology doctorate | About 3 years after GBC | Varies by provider; some places funded | Graduates with strong relevant experience |
| Trainee post with supervised Stage 2 | At least 2 years | Salaried; employer may fund training | Earning while you qualify |
How long it takes
Expect around three to seven years after your first degree to qualify, depending on whether you need a conversion course and how quickly you secure a trainee post. You can work as an assistant psychologist, support worker or prison officer much sooner, which also builds the experience trainee posts ask for.
Criminal Psychologist salary in the UK
Trainee and assistant-level roles usually pay around £26,000 to £31,000. Once you are qualified and registered, forensic psychologists typically earn £38,000 to £54,000, and senior, lead or consultant forensic psychologists reach £65,000 to £90,000 or more. Pay depends on whether you work for the prison service, the NHS or a private secure provider, and senior roles add management or clinical leadership duties. Some experienced psychologists also earn extra fees writing expert reports for courts and parole hearings.
Key skills
- Critical thinking
- Analytical skills
- Effective communication
- Investigation techniques
- Research skills
- Resilience
Criminal Psychologist FAQs
How do I become a criminal psychologist in the UK?
Train as a forensic psychologist. Get a BPS-accredited psychology degree or conversion course, complete an accredited MSc in forensic psychology, then do at least two years of supervised practice (BPS Stage 2) or an HCPC-approved doctorate, and register with the HCPC.
Is criminal psychologist a protected title in the UK?
No. "Criminal psychologist" is not protected, but "forensic psychologist" is, and only people registered with the HCPC can use it. Employers in prisons, the NHS and secure hospitals recruit qualified forensic psychologists, so that is the title to train towards.
How much does a criminal psychologist earn in the UK?
Trainees and assistants usually earn around £26,000 to £31,000. Qualified forensic psychologists typically earn £38,000 to £54,000, and senior or consultant psychologists reach £65,000 to £90,000 or more, depending on the employer and responsibility.
Do criminal psychologists help the police catch offenders?
Rarely. Offender profiling and behavioural advice to police investigations are done by a small number of specialists. Most forensic psychologists work with people already in prisons, secure hospitals or on probation, assessing risk and running treatment programmes.
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