If you’re drawn to solving crimes, uncovering the truth and helping victims get justice, a career as a police detective could be for you.
In the UK, police detectives are specialist officers who investigate serious and complex criminal activity — from fraud to murder.
In this blog, you’ll learn that the path into the role isn’t as mysterious as it might seem, but it does require commitment, resilience and the right skills. Let’s dive into our police detective career guide.
Key takeaways: How to become a detective (UK)
- In the UK, “detective” in a police context means a warranted police officer working in the Criminal Investigation Department (CID) or other investigative units.
- You can join the police through a direct-entry detective programme or train as a uniformed officer first.
- Most entry routes require you to be at least 18, pass vetting, meet fitness and health standards, and have the right to work in the UK.
- Training involves passing the National Investigators’ Exam (NIE) and achieving a Professionalising Investigation Programme (PIP) level.
Common detective terms explained
In need of a quick jargon buster?
Here are a few terms you’ll see recurring in police detective career guides:
- DC – Detective Constable. The entry rank for detectives, equivalent in status to a uniformed constable.
- DS – Detective Sergeant. The first supervisory rank for detectives.
- NIE – National Investigators’ Exam. A key assessment you must pass early in your detective career.
- PIP – Professionalising Investigation Programme. A framework for training and accrediting investigators at different levels.
What does a police detective do?
The role of a police detective is both specialist and varied.
Police detectives gather evidence, interview witnesses and suspects, prepare case files and work with prosecutors to bring offenders to justice.
They often specialise in areas such as homicide, cybercrime, drugs or organised crime.
Unlike uniformed officers, detectives do not wear standard police uniforms day to day, but they have the same powers of arrest.
A significant proportion of a police detective’s work involves analysing evidence, liaising with experts, and presenting findings clearly for court.
Routes to becoming a detective in the UK
There’s more than one way into detective work, and your background will help determine the best route.
Direct-entry detective constable schemes are open to people who meet police entry requirements, and in some forces you don’t need a degree.
They let you bypass long periods in uniform and start investigative training from your first day, blending classroom learning with practical casework. Note: You’ll still need to pass the National Investigators’ Exam early on.
The Degree Holder Entry Programme – Detective pathway (DHEP) is only for applicants who already have a degree in any subject.
It’s a structured two-year route combining on-the-job training with academic study towards a policing qualification. You may spend some initial time in uniform before moving into a full-time detective role.
If you don’t have a degree, the Police Constable Degree Apprenticeship is a three-year earn-and-learn option.
You start in uniform, then can apply to move into CID after gaining experience. Many detectives also begin in response policing, completing probation before transferring internally into investigations.
Entry requirements and vetting
No matter which pathway you choose, you must meet national police entry standards.
The minimum age to join the force is 18, you must have the right to work in the UK, and successfully pass medical and fitness checks.
Good eyesight is also part of the entry criteria. If you’re a glasses or contact lens wearer, don’t panic, these are allowed (within certain limits – they must correct your eyesight to meet the required standards).
It probably won’t come as a surprise that you’ll also go through security vetting. This process examines your criminal record, financial history and residency.
And for many forces, a full UK manual driving licence is required. You can check full eligibility criteria from the College of Policing website.
Training and early career timeline
Detective training starts with initial police training, where you learn legal powers, community engagement and core policing skills.
- From there, you’ll prepare for and sit the National Investigators’ Exam, before moving on to achieve PIP Level 2 accreditation.
- During the early stages of your career, you’ll work alongside experienced detectives, handling less complex cases under their supervision.
Over time, as your skills grow, so will your caseload – until you’re managing investigations more independently.
Key skills and qualities detectives use
Good detectives combine technical knowledge with strong personal skills.
- You’ll need to communicate clearly, both in writing and in person, whether taking a witness statement or giving evidence in court.
- Problem-solving, analytical thinking and attention to detail are key for piecing together timelines and evidence.
- The role also demands no small amount of resilience. You may find yourself facing distressing situations or carrying out difficult interviews.
Note: Increasingly, digital literacy is important too, from managing case files to interpreting data from devices. It’s worth keeping up your skills — or upskilling where appropriate.
Police detective salary (UK)
Detective constables earn the same as uniformed police constables. From August 2025, detective starting pay is around £31,163, rising to about £50,257 after six years, with regional allowances of up to £7,000 in some areas.
Average salaries sit between £40,000 and £45,000, with Detective Sergeants and Inspectors earning £50,000 to £60,000+.
These figures come from the Police Remuneration Review Body and individual force recruitment pages.
Work–life realities
While many people are drawn to detective work for its problem-solving appeal, it’s important to be aware of the realities.
- You may work shifts, weekends and be on call for urgent incidents. Court dates and interviews can extend your working hours unexpectedly.
- As we have already touched on above, some cases involve sensitive or upsetting material.
Most forces offer occupational health support, peer groups and counselling to help manage the emotional impact of the work.
Application tips and CV advice
When applying, tailor your CV to the role by emphasising skills in investigation, communication and teamwork.
- Use the STAR method (Situation, Task, Action, Result) to show how you’ve demonstrated these skills in study, work or volunteering.
- Match your examples to the competencies listed in the job description, and prepare for behavioural interview questions. For more tips, read our “Tell me about yourself” sample answers guide for example.
Note: Our career coaching service offers a bespoke approach to helping you become a detective if you’re looking for a higher level of support.
FAQs
What qualifications do I need to be a detective?
You don’t need a specific degree, but you must meet police entry requirements and complete detective training, including the National Investigators’ Exam.
Is a detective well paid?
Detectives in the UK start at just over £31,000, rising above £50,000 with experience, plus allowances. Senior ranks can earn £60,000+.
Can you go straight to detective in the UK?
Yes — some forces offer direct-entry detective schemes for degree holders or graduates, but places are limited.
Do you need a degree to be a detective in the UK?
Not always. The PCDA route allows you to earn a degree while working as a police constable.
How long does it take to become a detective?
Direct-entry routes take about two years to complete training. If you start in uniform first, it can take three to five years to move into a detective role.
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Final thoughts: How to become a police detective (UK)
Becoming a police detective in the UK takes dedication, training and the right mindset — but it can be a rewarding way to make a real difference.
If you’re ready to apply, check your eligibility with your chosen force and make sure your CV shows the skills and qualities they need.
We hope you found this article useful. If so, why not take a look at some of our other blogs, such as:
- How To Tell If An Interview Went Well: Good and Bad Signs
- Tell Me How You Handled A Difficult Situation Example Answers
- Being Self-Employed But Working For An Employer
- What Does A Good CV Look Like?
For expert help, contact us today, and learn more about PurpleCV’s CV writing services.
