Digital media investigator programme (DMI) – initial module

The first module of a three-step process to becoming a digital media investigator (DMI).

This module is followed by a minimum period of six months’ workplace-based assessment and finishes with the Hydra module, a two-day exercise in an immersive, interactive environment to consolidate learning.

By the end of this initial course, learners will be able to:

  • show knowledge and understanding of investigative opportunities presented by the exploitation of digital data
  • formulate and correctly record a strategy, based upon a scenario
  • demonstrate effective decision-making to support the Senior Investigating Officer in a major investigation and an ability to change their strategy dynamically as the investigation progresses


​To provide the foundation and core skills to enable individuals to effectively perform the role of DMI.


​On successful completion of this module learners will be able to:

  • understand the role and responsibilities of the DMI
  • apply the relevant legislation associated with the process for the acquisition of communications data
  • analyse the investigative opportunities offered by digital data
  • understand the tactical application of open and closed source intelligence
  • understand how Wi-Fi works and identify sources of Wi-Fi data
  • understand Radio Network Principles and evaluate the benefits a Radio Frequency Propagation Survey (RFPS) can bring to an investigation
  • understand the basic concepts of cloud data
  • identify other sources of data and their potential investigative contribution
  • understand the role of the DMI

Methods of delivery

​The module is trainer-led, classroom-based and delivered to a maximum of 12 delegates.

Key details

Qualification eligibility

College Learn – e-learning programmes:

  • communication data
  • digital forensics
  • evidence and disclosure
  • investigation and strategy
  • open source
  • other sources of digital data

Learners are required to achieve a minimum score of 80% in the College Learn DMI assessment in order to attend the classroom-based element of the programme.​

Practitioner group

Officers and staff undertaking the role of digital media investigator within a dedicated unit or who have responsibilities for digital media investigation as part of their role.


Three days.


Home Office forces (non-residential):

£411 (1 April 2020 to 31 March 2021)

Course contact