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The Journey to Becoming a Criminal Investigator: How Long Does it Take?

February 07, 2023 · 6 min read

The basic requirements to become a criminal investigator vary by jurisdiction and employer, but typically include the following:

  1. Education: Most criminal investigators have at least a bachelor's degree in a field such as criminal justice, criminology, or forensic science, although some employers may accept relevant work experience in lieu of a degree.
  2. Training: Criminal investigators may need to complete specialized training in areas such as evidence collection and analysis, interviewing techniques, and legal procedures.
  3. Work experience: Criminal investigators typically start as patrol officers, detectives, or other law enforcement professionals, and then progress to specialize in criminal investigations.
  4. Background check: Criminal investigators typically undergo a thorough background check, including fingerprinting and a review of their criminal history.
  5. Physical fitness: Criminal investigators may need to be in good physical condition, as their job may involve physical activity such as chasing suspects and conducting searches.
  6. Licensing: Criminal investigators may need to be licensed by the state or federal government, and may need to meet continuing education requirements to maintain their license.
  7. Clearance: Criminal investigators may need to obtain a security clearance, depending on the nature of the work they will be doing and the level of access they will have to sensitive information.
  8. Criminal investigator skills: In addition to the specific skills and knowledge outlined in the previous answer, criminal investigators also need to have strong interpersonal, analytical, and communication skills, as well as the ability to think critically and make sound judgments.

A bachelor's degree is not always necessary to become a criminal investigator, but it is typically preferred or required by most employers. A bachelor's degree in a related field such as criminal justice, criminology, or forensic science can provide a solid foundation of knowledge and skills that can be useful in the field. However, some employers may accept relevant work experience in lieu of a degree, especially for entry-level positions or for those who are already working in law enforcement. Ultimately, the specific requirements for becoming a criminal investigator can vary depending on the jurisdiction and the employer.

A master's degree is not necessary to become a criminal investigator, but it can be helpful in advancing one's career and increasing earning potential. A master's degree in a related field such as criminal justice, criminology, or forensic science can provide advanced knowledge and skills, and can demonstrate a commitment to the field. However, a master's degree may not be necessary for entry-level positions, and many criminal investigators advance their careers through work experience and continuing education. The specific requirements for becoming a criminal investigator can vary depending on the jurisdiction and the employer, and earning a master's degree may not be a requirement for all positions.

A Ph.D. is not necessary to become a criminal investigator. While a Ph.D. can demonstrate a high level of expertise and provide opportunities for advanced research and academic positions, it is not typically a requirement for becoming a criminal investigator. Most criminal investigators have at least a bachelor's degree in a related field, such as criminal justice, criminology, or forensic science, and many advance their careers through work experience and continuing education. The specific requirements for becoming a criminal investigator can vary depending on the jurisdiction and the employer, and a Ph.D. may not be necessary for all positions.


There is no standard license or certification required to become a criminal investigator, as the requirements can vary depending on the jurisdiction and the employer. However, certain certifications can demonstrate knowledge and expertise in a specific area of investigation and can help increase one's competitiveness for employment. For example, certifications such as the Certified Criminal Investigator (CCI) from the International Association of Crime Analysts (IACA), the Certified Fraud Examiner (CFE) from the Association of Certified Fraud Examiners (ACFE), or the Certified Homeland Security Professional (CHSP) from the Institute for Homeland Security (IHS), can be beneficial for criminal investigators who specialize in certain areas of investigation. Additionally, obtaining a peace officer or law enforcement certification from a recognized organization can be beneficial for criminal investigators who work in law enforcement agencies. The specific requirements for certifications and licenses can vary depending on the jurisdiction and the employer.


Specialized training is typically necessary to become a criminal investigator. Most criminal investigators complete basic and advanced training programs provided by their employers or through recognized training organizations. This training can cover a range of topics, including criminal investigation techniques, evidence collection and preservation, interviewing and interrogation, crime scene management, and the use of firearms and other equipment. Some criminal investigators also complete additional training to specialize in a particular area of investigation, such as forensic science, computer forensics, or fraud examination. The specific training requirements can vary depending on the jurisdiction and the employer, but obtaining specialized training can help increase one's knowledge and competitiveness for employment.


The amount of time it takes to become a criminal investigator can vary depending on several factors, including your educational background, work experience, and the specific requirements of the jurisdiction and the employer.

Typically, a bachelor's degree in a related field, such as criminal justice, criminology, or forensic science, is the minimum requirement for becoming a criminal investigator. This can take four years of full-time study to complete. However, some criminal investigators have advanced degrees, such as a master's degree in criminal justice or a related field, which can take an additional two years of full-time study.

In addition to formal education, many criminal investigators gain practical experience through internships, work as police officers or detectives, or other related work experience. The specific experience requirements can vary depending on the jurisdiction and the employer, but having a combination of education and experience can increase one's competitiveness for employment.

In summary, the amount of time it takes to become a criminal investigator can range from several years of education and practical experience to several decades, depending on the specific requirements and career goals of the individual.

by Olena Sobolieva

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