College of Policing • NDM

National Decision Model (NDM) police meaning

Decision-making framework. A straightforward operational memory aid for National Decision Model (NDM).

Short answer

The NDM is the single decision-making model for everyone in policing, for spontaneous incidents and planned operations. Use the existing six elements to structure and record decision rationale.

National Decision Model (NDM)
Decision-making framework
CCode of Ethics — principles and standards of professional behaviour (the centre of the model, binding all stages)
IInformation — gather information and intelligence
AAssessment — assess threat and risk and develop a working strategy
PPowers and policy — consider powers and policy
OOptions — identify options and contingencies
AAction — take action (the decision made or action taken)
RReview — review what happened (the resulting outcome)

When officers use it

The NDM is the single decision-making model for everyone in policing, for spontaneous incidents and planned operations. Use the existing six elements to structure and record decision rationale.

Practical point: use the mnemonic alongside current training, procedures and the live facts.

Why Section includes this

Section is a fast UK police reference app for officers and student officers: offences, points to prove, PACE powers and operational mnemonics in one offline place.

What does National Decision Model (NDM) stand for?

C = Code of Ethics, I = Information, A = Assessment, P = Powers and policy, O = Options, A = Action, R = Review.

Operational mnemonics, plus 1,200+ offences, offline

Section puts mnemonics, points to prove and maximum penalties in your pocket for on-shift lookup.

Join the waitlist