PFD report

Mark Adam Yafai · Prevention of Future Deaths report

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Issued 9 Nov 2016•Coventry

Report record

Published report and response evidence

This page connects the concerns raised in this report with statements found in recipients’ published responses. A link shows a clear evidence connection; it does not assign responsibility.

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Concerns
2

Raised in this report

Recipients
2

Named on the report

Responses found
0

Of 2 recipients

Stated actions
0

Described in responses

Source document

Full report text

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Concerns and recipient responses

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Report evidence summary

Concerns raised2

  1. Failure to require Health Care Professional assessment after disclosed recent drug consumption
    Part of recurring concern: Unreliable medical assessments in police custody
  2. Lack of clear and consistent drug-related risk assessment and observation guidance
    Part of recurring concern: Unreliable healthcare referral for medically vulnerable detaineesPart of recurring concern: Unreliable patient observation arrangements
Responses linked to these concerns

Each statement is shown once, even when linked to more than one concern.

No linked response statements

No respondent-stated action or position is clearly linked to these concerns.

Source evidence

How this individual concern was interpreted

PFD Monitor created a concise, searchable interpretation from the report wording shown below. Response links show a clear evidence connection; they do not assign responsibility.

PFD Monitor interpretation

Failure to require Health Care Professional assessment after disclosed recent drug consumption

Wider context from the report

“i. The Safer Detention Policy and Handling of Person in Custody Composite Policy as updated August 2014 was replaced by the WMP Detention and Custody Policy Inc. Standard Operating Procedure with effect from the 22nd December 2015. The earlier policy was in operation at the time Mark Yafai died. The earlier policy lacked clarity or guidance in how the phrase “under the influence” must be interpreted. The phrase is unsuitable since it confers a very broad discretion upon a custody officer to not have the detainee examined by a Health Care Professional, despite a detainee has disclosed recently consuming drugs. The impact upon risk assessment and levels of observation is clear and significant. A broad discretion of an officer when determining risk concerning medical matters including drug use is inadequate. The jury made a determination in similar terms. ii. The evidence was the policy is accessible. Accordingly, it is paramount that the policy must provide clear unambiguous guidance/ direction to custody officers particularly in relation to drugs which can have serious consequences for an individual who has consumed. The circumstances of this inquest touching upon the death of Mark Yafai accentuated this point. The evidence was that cocaine can have toxic effects even from small quantities (as little as 0.03g). Consumption can be via a number of means and the effects delayed depending upon the method of ingestion. There is no antidote to cocaine toxicity. The evidence was custody officers range of knowledge about drugs and the effects can and do differ and this can have a bearing upon risk assessment given the terminology in the policy and broad discretion officers have. iii. The 2015 policy retains that same unclear terminology i.e. “believed to be under the influence of drugs or withdrawing from drugs” and “will be seen by a Health Care Professional (HCP) as a matter of course”. iv. It does not deal with the instances in which a detainee irrespective of presentation (which is not itself any easy assessment when a detainee is being observed by an officer most likely for the first time with no information against which a comparison may be made as whether their current presentation is indeed “normal”) has disclosed the recent consumption of drugs. What is “a line” or any quantitative opinion on drugs consumed is a very subjective assessment by the detainee and/ or the custody officer. v. An assessment as to the effect of any drugs is best assessed a by a Heath Care Professional. That was the evidence and information that emerged in the inquest. Standard medical observations can be undertaken ranging from a check as body temperature to elevated heart rate or blood pressure which may be indicators that drugs are having an adverse effect upon the body. vi. Earlier identification of these matters may prevent death particularly since treatment for many drugs, particularly cocaine, is symptomatic. Close observation of a detainee is clearly significant since early treatment of symptoms can have an impact upon an individual’s survivability. vii. The policy in other respects does use directional/ non discretion type terminology in some respects when dealing with drug issues. It is thus currently inconsistent in this respect on this topic and in interrelation with Risk assessment and appropriate observation levels which are a focus of custody personnel. ”

Is this part of a recurring concern?

Yes — Unreliable medical assessments in police custody.

Open source report

Source evidence

How this individual concern was interpreted

PFD Monitor created a concise, searchable interpretation from the report wording shown below. Response links show a clear evidence connection; they do not assign responsibility.

PFD Monitor interpretation

Lack of clear and consistent drug-related risk assessment and observation guidance

Wider context from the report

“i. The Safer Detention Policy and Handling of Person in Custody Composite Policy as updated August 2014 was replaced by the WMP Detention and Custody Policy Inc. Standard Operating Procedure with effect from the 22nd December 2015. The earlier policy was in operation at the time Mark Yafai died. The earlier policy lacked clarity or guidance in how the phrase “under the influence” must be interpreted. The phrase is unsuitable since it confers a very broad discretion upon a custody officer to not have the detainee examined by a Health Care Professional, despite a detainee has disclosed recently consuming drugs. The impact upon risk assessment and levels of observation is clear and significant. A broad discretion of an officer when determining risk concerning medical matters including drug use is inadequate. The jury made a determination in similar terms. ii. The evidence was the policy is accessible. Accordingly, it is paramount that the policy must provide clear unambiguous guidance/ direction to custody officers particularly in relation to drugs which can have serious consequences for an individual who has consumed. The circumstances of this inquest touching upon the death of Mark Yafai accentuated this point. The evidence was that cocaine can have toxic effects even from small quantities (as little as 0.03g). Consumption can be via a number of means and the effects delayed depending upon the method of ingestion. There is no antidote to cocaine toxicity. The evidence was custody officers range of knowledge about drugs and the effects can and do differ and this can have a bearing upon risk assessment given the terminology in the policy and broad discretion officers have. iii. The 2015 policy retains that same unclear terminology i.e. “believed to be under the influence of drugs or withdrawing from drugs” and “will be seen by a Health Care Professional (HCP) as a matter of course”. iv. It does not deal with the instances in which a detainee irrespective of presentation (which is not itself any easy assessment when a detainee is being observed by an officer most likely for the first time with no information against which a comparison may be made as whether their current presentation is indeed “normal”) has disclosed the recent consumption of drugs. What is “a line” or any quantitative opinion on drugs consumed is a very subjective assessment by the detainee and/ or the custody officer. v. An assessment as to the effect of any drugs is best assessed a by a Heath Care Professional. That was the evidence and information that emerged in the inquest. Standard medical observations can be undertaken ranging from a check as body temperature to elevated heart rate or blood pressure which may be indicators that drugs are having an adverse effect upon the body. vi. Earlier identification of these matters may prevent death particularly since treatment for many drugs, particularly cocaine, is symptomatic. Close observation of a detainee is clearly significant since early treatment of symptoms can have an impact upon an individual’s survivability. vii. The policy in other respects does use directional/ non discretion type terminology in some respects when dealing with drug issues. It is thus currently inconsistent in this respect on this topic and in interrelation with Risk assessment and appropriate observation levels which are a focus of custody personnel. ”

Is this part of a recurring concern?

Yes — Unreliable healthcare referral for medically vulnerable detainees; Unreliable patient observation arrangements.

Open source report
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Information checked against the published report and official responses · Data reviewed 7 Sep 2026 · About data quality and limitations

Official responses located
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Data last updated 7 September 2026

No official response is included in the current published snapshot.