Certified Technical Investigator (CTI)
NATIA Professional Credential for Technical Investigators and Surveillance Specialist
Certified Technical Investigator (CTI)
NATIA’s Professional Certification for Technical Investigators
The Certified Technical Investigator (CTI) program establishes professional standards for members of the technical surveillance and investigative technology community. The certification recognizes investigators who demonstrate knowledge, experience, and competency across key technical disciplines used in modern investigations.
The program supports agencies by identifying personnel who have achieved a recognized level of training and expertise in the tools and technologies used to support investigative operations.
Program Overview
The CTI certification program combines professional experience, training, and examination to validate an investigator’s knowledge of technical investigative practices.
The certification helps ensure consistent standards across agencies and promotes continued professional development within the technical investigations field.
CTI-certified investigators commonly support operations involving:
- Surveillance technology
- Video and audio systems
- Tracking technologies
- Technical installations
- Investigative support equipment
CTI Quick Links
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Reference Manual
Access the NATIA CTI Certification Reference Manual.
CTI Exam
Register for the CTI exam and view exam information.
View / Renew CTI
View certification status and complete renewal requirements.
Report PDT Hours
Submit Professional Development Training (PDT) hours toward certification renewal.
Print Certificate(s)
Download and print your CTI certification documents.
CTI Documents
Access program guides, application information, and supporting documents.
Certification Requirements
To obtain CTI certification, candidates must demonstrate experience in the technical investigations field and successfully complete the certification exam.
The exam evaluates knowledge across multiple technical disciplines used by investigative teams and agencies supporting surveillance and intelligence operations.
Certification is valid for three years, after which members must complete continuing education requirements to maintain active status.
Maintaining Certification
To renew certification, CTIs must complete Professional Development Training (PDT) hours during each certification cycle and submit renewal documentation through the NATIA member portal.
Continuing education ensures that certified investigators remain current with evolving technology and investigative techniques.
CTI Documents
Program guidance and required documentation can be downloaded below.
CTI Program Guide
Overview of the certification program, eligibility requirements, exam information, and renewal details.
Verification of Technical Field Experience Form
Required for applicants who do not meet the experience requirements through training or work history.
Documents:
Specialized Certifications
After obtaining CTI certification, members may pursue Specialized Certifications through NATIA training programs.
These certifications allow investigators to develop deeper expertise in specific technical disciplines.
Examples include:
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- Technical Installations in a High Voltage Environment
- IP-Based Surveillance Systems
Download course information and flyers to learn more.
Certification Benefits
Agencies value CTI-certified investigators because the certification demonstrates:
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- Verified technical knowledge
- Professional training standards
- Commitment to continuing education
- Experience supporting investigative operations
The CTI designation helps ensure that agencies have qualified personnel capable of supporting complex technical investigations.
In-Demand Knowledge
CTI’s have demonstrated a basic knowledge of audio, video, electronics, tracking, and telephony. The technical community regards this knowledge as essential in today’s challenging law enforcement environment.
Standards of Excellence
The CTI Guidelines and Reference Manual show employers what skill sets are needed to become a CTI. Certification reflects a standard level of skills and expectations needed to perform effectively.
Comprehensive Experience
Taking the training or having the experience needed to challenge the CTI test exposes the member to all the aspects of our industry and puts us all at an even starting point.
Improved Employability
CTI certification is an asset to list on a resume. There are some situations where certification has enhanced the CTI’s salary. Some agencies are now requiring certain personnel to become NATIA CTI’s.
Increased Collaboration
When working with other agencies, CTI’s will know they are working with a person of similar knowledge and an immediate level of trust can be developed.

