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Criminal Investigator Job Description

What does a Criminal Investigator do?

A Criminal Investigator is responsible for investigating and preventing crimes. They work closely with law enforcement agencies to gather evidence, interview witnesses, and build cases against individuals who have been accused of breaking the law. They also liaise with lawyers and courts to ensure that the legal process is followed correctly. In addition, Criminal Investigators often work with other professionals, such as forensic scientists, to analyse crime scenes and evidence. They may also be involved in surveillance operations or covert investigations. Overall, the role of a Criminal Investigator is pivotal in maintaining law and order and ensuring that justice is served.

Our Criminal Investigator job description includes the Criminal Investigator responsibilities, duties, skills, education, qualifications, and experience.

Criminal Investigator Example


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If you need an example job description for a Criminal Investigator download the one below, alternatively we have many other job description samples and a job description library with over 3000 job descriptions templates that you can download for free.

What does a Criminal Investigator do?

Criminal Investigator

The role of a Criminal Investigator is to investigate criminal matters and collect evidence in order to bring offenders to justice. This role involves working closely with the police, other law enforcement agencies and other professionals to bring cases to a successful conclusion.

The primary duties of a Criminal Investigator include interviewing witnesses and suspects, gathering information and evidence, attending crime scenes and performing searches, analysing data and evidence, preparing reports and presenting them to the courts, and attending court hearings to provide evidence.

To be successful in this role, you will need to have excellent problem-solving skills, good communication and interpersonal skills, and the ability to work well as part of a team. You should also be able to manage multiple cases and tasks effectively and be able to work under pressure. Previous experience in a similar role or in a law enforcement environment is highly desirable.

Criminal Investigator Role Purpose

The purpose of a criminal investigator in the UK is to investigate criminal activity and to gather and assess evidence in order to bring offenders to justice. The role involves interviewing witnesses, searching crime scenes, analysing evidence, preparing reports, presenting cases in court and working closely with the police and other law enforcement agencies. A criminal investigator must be knowledgeable in criminal law and understand the procedures and requirements of criminal investigations. They must be able to work independently, as well as in a team, and must be able to work under pressure.

Criminal Investigator Role

A Criminal Investigator is responsible for gathering evidence and conducting investigations into suspected criminal activity. This role entails interviewing witnesses, gathering and analyzing evidence, producing reports and identifying suspects. The investigator is also responsible for maintaining records and presenting their findings in court.

Criminal Investigator Duties

  • Conduct investigations into suspected criminal activity
  • Gather evidence and prepare case files
  • Conduct interviews and interrogations
  • Provide testimony in court
  • Work with other law enforcement agencies

Criminal Investigator Requirements

  • Ability to analyse complex data and evidence
  • Organisational and problem-solving skills
  • Excellent communication and interpersonal skills
  • Knowledge of relevant legislation

Criminal Investigator Skills

  • Conducting interviews
  • Collecting evidence
  • Analyzing data
  • Developing investigative strategies

Criminal Investigator Personal Traits

  • Analytical
  • Organised
  • Logical
  • Able to establish facts quickly
  • Able to keep calm under pressure

How to write a Criminal Investigator Job Advert

Use our job advert template to write a job advert for posting on job sites and job boards. Our job advertising templates are carefully created to help you reach your audience and beat the competition to the best talent.

A job description informs the reader about a job, whereas a job advert’s main objective is to sell the job opportunity to attract as many suitable applicants possible. A job advert maybe the first touch-point a candidate has with your company so it is important to create a great impression.

Job Advertisements should enticing, so considering using short, exciting language which get the reader’s attention.

How to write a Criminal Investigator Job Description

To write a job description, we recommend starting with a job description template from our job description library, which contains examples for 800+ positions and professions. Our job description examples include a job summary with duties and responsibilities and skills and requirements, which can be personalised for your job vacancy.

Job Description Advice - Guidance on How to Personalise a Criminal Investigator Job Specification

The hiring process and recruiting new employees to fill your key roles requires a degree of personalisation if you are to attract the best employees in a competitive employment market. The right person for a crucial role or more senior roles will likely have other employers targeting them. As your job description will be the first point of contact, you need to nail your pitch and provide the best possible service.

Job Description Tips - Help on formatting a Criminal Investigator Job Specification

When creating your bespoke description and advert, you should cover and promote these points:

Job title: This should accurately reflect the role and include keywords that top talent might be using to search for jobs.

Job duties: The day to day duties, such as administrative tasks, which vary depending on the company and inform the candidate if they can complete the role.

Technical skills: These are the hard skills required through training, such as proficiency with Microsoft Office.

Soft skills: These include the interpersonal skills and general abilities the right candidates will possess. For example, the competency to prioritise multiple tasks, handle customer queries and customer complaints, work alone, or build a good relationship with coworkers.

The company's culture: Highlighting your company culture and values ensures employees thrive and find outstanding job satisfaction. Candidates that are not the right fit won’t waste their time completing the application process, meaning you can focus on qualified individuals and hire in a more timely manner.

Career progression: Including the career path will entice candidates looking for career growth. 

Training and development programs: Smaller companies may need employees with previous experience or provide educational assistance over internal training offered by larger organisations with more significant resources. 

Employee benefits: Compensation and benefits often fail to appear in job ads and while you may want to hold your cards close to your chest, failing to include them is a mistake. Consider answering common questions, such as working hours and paid leave. Researching the average salary for the role in these early stages will ensure you don’t waste your interviewer’s and the candidate’s time.

Skill gaps: Your company may need to bring in new skills beyond those required to complete the key role and duties. Thinking on an organisational level can be beneficial when contemplating skills diversity.

Legal requirements: Ensure your job advert and description does not ask for inappropriate or discriminatory personal details, such as age, marital status, or religion.

How to Hire a Criminal Investigator

Once you have selected your Job Description download it or convert it to a Job Advert. From here you can post/advertise your job across our network of job boards. If you wish to use the job description for a CV Template click through for advice and Convert to a CV

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