Incentives for Drug Testing Refusals: The Police Funding Model for Success

By Nigel Gray 2 July 2026

 

Preface

The Road Policing Investment Programme (RPIP) 2024–27 does not explicitly reward Police when drivers refuse drug tests. However, the programme’s funding structure, performance expectations, and deterrence‑driven operational logic create structural incentives that favour high‑volume testing, visible enforcement, and procedural throughput. Within that environment, refusal becomes an administratively efficient outcome — not because it is sought, but because it aligns with the system’s measurable outputs.

This article outlines how those structural incentives arise, how they shape frontline behaviour, and why refusal can become operationally convenient despite the absence of any direct financial benefit.

The Funding Model: Activity Over Accuracy

The RPIP funds Police based on activity outputs, not accuracy outcomes.

Funded activities include:

Visible enforcement

High‑coverage roadside screening

Deterrence presence

Risk‑based targeting

These activities are counted, reported, and used to justify funding.

What is not measured:

accuracy of impairment assessment

scientific reliability of testing

minimisation of false positives

rights‑protection or proportionality

quality of officer decision‑making

When a system rewards doing more, not doing better, behaviour follows the incentives.

Deterrence as a Performance Expectation

The RPIP repeatedly emphasises the importance of perceived likelihood of being caught.

This is framed as a Key Performance Indicator (KPI) — spelled out in full as Key Performance Indicator, not just the acronym — and it drives a particular style of policing.

What this means in practice

more stops = stronger deterrence

more tests = stronger deterrence

more prohibitions = visible action

more roadside activity = measurable success

Under this logic, officers are incentivised to maximise interactions, not to evaluate impairment.

Refusal becomes just another “visible enforcement outcome.”

Throughput Incentives: Why Refusal Is Operationally Convenient

Although refusal is not financially rewarded, it is procedurally efficient.

A refusal:

ends the interaction immediately

avoids the second oral fluid test

avoids evidential blood testing

avoids laboratory processing

avoids waiting for results

avoids complex paperwork

produces an instant prohibition

counts as a “successful enforcement action”

In a system driven by volume, visibility, and deterrence, refusal is the fastest path to a measurable output.

This is not corruption — it is structural bias created by the funding model.

No Key Performance Indicator for Accuracy or Rights

The RPIP contains no Key Performance Indicator for:

correct identification of impairment

minimising unnecessary detentions

ensuring scientific reliability

protecting due process

reducing false positives

ensuring proportionality

When a system lacks metrics for fairness, fairness becomes optional.

When a system rewards throughput, throughput becomes the priority.

Risk‑Based Targeting and the Blanket‑Testing Effect

The RPIP encourages Police to focus on:

high‑risk corridors

high‑risk groups

high‑risk behaviours

This often results in blanket testing, especially in:

rural freight routes

nightlife zones

festival environments

checkpoints

Blanket testing increases:

the number of interactions

the number of tests

the number of prohibitions

the number of refusals

Refusal becomes a predictable by‑product of a high‑volume strategy.

The Absence of Downside: Why Officers Can Escalate Freely

The RPIP does not penalise:

unnecessary escalation

misinterpretation of faint lines

over‑testing

procedural rigidity

ignoring contextual impairment cues

With no downside for escalation, and clear upside for activity, officers naturally gravitate toward more testing, not more discernment.

The Systemic Outcome: A Culture of Procedural Maximisation

When you combine:

activity‑based funding

deterrence‑based Key Performance Indicators

visibility‑based performance expectations

risk‑based targeting

no accuracy metrics

no rights‑protection metrics

operational convenience of refusal

You get a system where:

refusal is not incentivised financially

refusal is incentivised structurally

The RPIP does not say “prefer refusals.”

But the system it creates makes refusals easier, faster, and more aligned with funded outputs.

Why This Matters

The public is told the drug‑testing regime is about:

impairment

safety

science

fairness

But the funding model is about:

numbers

visibility

throughput

deterrence

This mismatch creates predictable distortions in frontline behaviour.

Understanding these incentives is essential for:

legislative review

public accountability

Ombudsman oversight

rights‑based advocacy

scientific scrutiny of testing devices

Conclusion

There is no explicit incentive for Police to prefer drug‑test refusals.

But the RPIP’s architecture creates implicit incentives that make refusal:

administratively efficient

operationally convenient

aligned with funded outputs

consistent with deterrence logic

In a system built on activity, visibility, and throughput, refusal becomes a structurally favoured outcome — not because Police want it, but because the funding model rewards the behaviours that make it more likely.