Prevention of Future Deaths reports · 2023

Mizanur Rahman

Regulation 28 report to prevent future deaths, reference 2023-0306, written 29 Aug 2023. A coroner writes one of these when an inquest reveals a risk that could cause further deaths unless something changes.

Date of report29 Aug 2023
Reference2023-0306
DeceasedMizanur Rahman
CoronerAdam Smith
Coroner areaInner North London
CategoryOther related deaths · Product related deaths
Sourcejudiciary.uk record · original PDF
Responses published1

The report

Text extracted from the PDF text layer. Reproduced verbatim, including the scan's own layout.

Regulation 28:  Prevention of Future Deaths report 

Mizanur RAHMAN (died 09.03.23) 

THIS REPORT IS BEING SENT TO: 

Chief Executive Officer 
Office for Product Safety and Standards 
4th Floor Cannon House 
18 The Priory Queensway 
Birmingham 
B4 6BS 

1  CORONER 

I am:   Adam Smith 

 Assistant Coroner  
 Inner North London 
 St Pancras Coroner’s Court 
 Camley Street 
 London, N1C 4PP 

2  CORONER’S LEGAL POWERS 

I make this report under the Coroners and Justice Act 2009, 
paragraph 7, Schedule 5, and  
The Coroners (Investigations) Regulations 2013, 
regulations 28 and 29. 

3 

INVESTIGATION and INQUEST 

On  17  March  2023,  E  Buckett,  HM  Assistant  Coroner  for  Inner  North 
London, commenced an investigation into the death of Mizanur Rahman, 
aged 41 years. The investigation concluded at the end of the inquest on 
17 August 2023.  

I made a determination of accidental death.  

The medical cause of death was: 

1(a) Hypoxic brain injury 
1(b) Thermal and smoke inhalation injury 

1 

 
 
 
 2 Bronchopneumonia 

4 

CIRCUMSTANCES OF THE DEATH 

Mr Rahman died on 9 March 2023 at the Royal London Hospital from the 
effects  of  smoke  inhalation  during  a  fire  which  took  place  in  the  early 
hours  of  5  March  2023  at  the  4th  floor  multi-occupancy  flat  where  he 
resided.  The fire was found to have been caused by a faulty lithium ion 
e-bike battery which was charging at the time. 

The e-bike from which the battery came, which was owned by another 
occupant of the flat, had been heavily modified, notably including a retro-
fitted additional battery cage and motor. 

I found on the evidence, which included that of  a London Fire Brigade 
Fire Investigation Officer (whose evidence was in turn informed by input 
from  the  Chief  Scientific  Adviser at  the  Fire  Science  Department,  who 
had examined  the  e-bike  and  remains of  the  charger\battery),  that the 
fire started with a faulty lithium ion battery, probably a battery and charger 
which  did  not  match  and  carried  different  voltage  ratings,  leading  to 
thermal runaway and catastrophic failure of the lithium ion battery. 

Despite attempts by occupants of the flat to prevent the fire’s escalation, 
this  was  not  possible  and  the  flat  quickly  filled  with  toxic  smoke 
necessitating  its  evacuation.    Sadly,  Mr  Rahman  did  not  successfully 
evacuate before he was overcome by the smoke, causing his death. 

5 

CORONER’S CONCERNS 

During the course of the investigation, including the inquest, the evidence 
revealed matters giving rise to concern.  In my opinion, there is a risk that 
future deaths will occur unless action is taken.  In the circumstances, it 
is my statutory duty to report to you. 

The MATTERS OF CONCERN are as follows.  

I have received evidence,  in particular from the  London Fire Brigade’s 
Fire Investigation Team: 

•  That Mr Rahman’s death is the ninth nationally in approximately 
one year, in six fires attributed to faulty lithium ion batteries. 

•  That the number of fires in London attributed to electric powered 
personal vehicles has risen consistently and significantly over the 
last six years and now stands at well in excess of 100 per annum. 

2 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 •  That there is presently no British or European (e.g. BSI or PAS) 
standard to control what lithium ion e-bike batteries and chargers 
can be sold in the UK and that, consequently: 

o 

It  is  easy  for  people  to  buy  (including  online)  lithium  ion 
batteries that are not of sufficient quality or otherwise not 
of an appropriate standard to charge safely. 

o  There is an increased risk of people mixing and matching 
lithium  ion  batteries  with  chargers  that  carry  a  different 
voltage rating. 

•  That the OPSS has the ability to introduce such a standard. 

•  Of how, when a lithium ion battery is charged using a charger with 
a  different  voltage  rating,  this  can  lead  to  thermal  runaway  and 
catastrophic failure of the battery - a build up of heat, failure of one 
of the cells within the battery, followed by a chain reaction as the 
remaining  cells  fail,  all  of  which  can  happen  quickly  and 
explosively  with  the  emission  of  sparks  and  toxic,  flammable 
vapours. 

I understand that there is currently a product safety review underway, led 
by the Office for Product Safety and Standards (OPSS) and involving the 
Home Office (Fire Policy Team) (under the Minister for Crime, Policing 
and Fire, Chris Philps MP) and a number of other organisations.  I do not 
know the timescale for this review, but it is clear that there is an existing, 
ongoing and future risk of further deaths whilst it continues to be the case 
that there are no controls or standards governing the sale in the UK of 
lithium  ion  batteries  and  chargers  (and  conversion  kits)  for  electric 
powered personal vehicles. 

This  report  is  being  provided  to  you  given  my  understanding  that  the 
OPSS has the ability to introduce an appropriate standard.  Insofar as 
this  power  may  lie  elsewhere,  or  other  individuals  or  organisations 
(whether or not involved in the current product safety review) would need 
to have input into the introduction of such a standard, you are requested 
to share this report with those individuals/organisations. 

6 

ACTION SHOULD BE TAKEN 

In  my  opinion,  action  should  be  taken  to  prevent  future  deaths  and  I 
believe that you have the power to take such action.  

7 

YOUR RESPONSE 

3 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 You are under a duty to respond to this report within 56 days of the date 
of this report, namely by 24 October 2023.  I, the coroner, may extend 
the period. 

Your  response  must  contain  details  of  action  taken  or  proposed  to  be 
taken, setting out the timetable for action.  Otherwise, you must explain 
why no action is proposed. 

8 

COPIES and PUBLICATION 

I have sent a copy of my report to the following. 

•  The Next of Kin of Mr Rahman 
•  The London Fire Brigade 
•  HHJ Thomas Teague QC, Chief Coroner of England & Wales 

I am under a duty to send a copy of your response to the Chief Coroner 
and all interested persons who in my opinion should receive it.  I may 
also send a copy of your response to any other person who I believe may 
find it useful or of interest.  

The Chief Coroner may publish either or both in a complete or redacted 
or summary form. He may send a copy of this report to any person who 
he  believes  may  find  it  useful  or  of  interest.  You  may  make 
representations to me, the coroner, at the time of your response, about 
the release or the publication of your response. 

9 

DATE                                    SIGNED BY ASSISTANT CORONER 

29 August 2023               

4

Responses

1 response published against this report on judiciary.uk. A response is a body's written reply to the coroner's concerns; publication is at the discretion of the Chief Coroner's office, so an absent response does not mean nobody replied.

Response from Product Safety and Standards (PDF)
Adam Smith 
Assistant Coroner 
Inner North London 
St Pancras Coroner’s Court 
Camley Street 
London, N1C 4PP 

Dear Mr Smith, 

Office for Product Safety and Standards 
Cannon House 
18 The Priory Queensway 
 Birmingham 
 B4 6BS 

    24 October 2023 

Regulation 28: Prevention of Future Deaths Report 

  Mizanur RAHMAN 

Thank you for your Regulation 28 Report (Prevention of Future Deaths) dated 29 August 2023, 
following  your  investigation  and  inquest  into  the  death  of  Mizanur  Rahman  who  died  on  9 
March 2023 as a result of smoke inhalation from a fire in a charging lithium-ion e-bike battery.  

May  I first  say  how  sorry I  was to  hear  of Mr  Rahman’s  death. If  you  have the  opportunity, 
please convey my deepest sympathies to his family and friends.   

I  would  like  to  assure  you  that  an  urgent  programme  of  activity  is  being  carried  out  across 
Government,  including  by  the  Office  for  Product  Safety  and  Standards  (OPSS);  the  Home 
Office; and the Department for Transport, looking at the root causes to understand why fires 
in e-bikes are occurring, so we can take action to tackle the issue.  

OPSS  has  engaged  with  both  the  London  Fire  Brigade  (LFB)  and  Tower  Hamlets  London 
Borough Council Trading Standards in relation to the tragic fire on 5 March. LFB initially notified 
OPSS  of  the fire  in  line with our  agreed  procedure  under the  terms of  our Memorandum  of 
Understanding.    Unfortunately,  in  this  case,  LFB  has  not  been  able  to  identify  the  specific 
manufacturer or model of conversion kit or battery involved from the remains of the product.  

UK product safety laws require all  consumer products to be safe.   E-bikes and e-scooters, 
their  batteries  and  chargers  must  comply  with  essential  safety  requirements  set  out  in  the 
Supply of Machinery (Safety) Regulations 2008, the General Product Safety Regulations 2005 
or Electrical Equipment (Safety) Regulations 2016. These require manufacturers to ensure the 
safety  of  products  before  they  are  placed  on  the  market  and  to  provide  consumers  with 
information on the safe use of these products, such as safe charging practices. In addition, 
importers  and  distributors,  including  online,  have  obligations  regarding  the  safety  of  the 
products they import or distribute.   

OPSS and Local Authority Trading Standards (LATS) have access to powers to enforce the 
law and we are prioritising action to identify and test e-bikes, modification kits and chargers so 
that products found to be unsafe are removed from the market.   

The Office for Product Safety and Standards is part of the Department for Business and Trade. We strive to enhance 
protections for consumers and the environment and drive increased productivity, growth and business confidence. 

https://www.gov.uk/government/organisations/office-for-product-safety-and-standards 

 
 
 
 
 
 
 
 
  
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 On 20 October OPSS published for designation, updated standard EN 15194:2017+A1:2023 
for  Electrically  Power  Assisted  Bicycles.  The  previous  version  of  this  standard  did  not 
adequately address the safe integration of batteries into battery packs and the incorporation 
of  battery  packs  into  an  end-device.  As  a  result,  it  was  designated  by  government  with  a 
restriction that meant that manufacturers had to go beyond the requirements of the standard 
to comply with the essential safety requirements in the law. Improvements to the standard have 
been made by the standards bodies and we are satisfied that it now meets the essential safety 
requirements with regards to battery safety.  As a result, we plan to remove the restriction that 
applied to battery packs so that manufacturers who follow the designated parts of the standard 
would be presumed to comply with legal requirements for safety. 

I can also confirm that OPSS is reviewing all relevant voluntary standards in this area to identify 
any areas where additional or updated standards would be beneficial to support the essential 
safety requirements in the law.  

We have already identified e-bike conversion kits as an area where, although there are legal 
safety  requirements,  there  is  no  specific  standard.  We  plan  to  commission  the  British 
Standards Institution (BSI) to prepare a fast-track standard (a publicly available specification) 
to cover technical and safety standards for conversion kits to help manufacturers comply with 
existing safety regulations.  

The issues involved in e-bike safety are complex as products may be safe when used alone 
but not when used in combination or when modified or converted. We know from LFB, and as 
you have mentioned in your report, that the e-bike involved in this fire was heavily modified 
including a retro-fitted additional battery cage and motor.   

OPSS  has  established a  multi-disciplinary  safety  study to  understand  data and  evidence  of 
risks  in  this  area  and  we  have  commissioned  new  research  into  battery  safety,  including 
compatibility issues, from Warwick Manufacturing Group (WMG - part of Warwick University). 
We are seeking the input and expertise of stakeholders including Electrical Safety First, the 
Fire and Rescue Services, the National Fire Chiefs Council, and the London Fire Brigade so 
we can better understand and tackle the complex issues involved.   

Ensuring consumers have access to clear and accurate information on safety issues is also a 
priority. In September OPSS published information for consumers to raise awareness of safe 
purchasing, use and charging practices and to draw attention to the new Fire England guidance 
on safe charging published in August.  

As  you  note  in  your  report,  the  Government  is  also  considering  longer  term  reforms.  A 
consultation on the Product Safety Review was launched on 2 August and is inviting views on 
the future approach to product safety regulation. As part of that consultation, the Government 
is considering how to use regulations in future to enable a more agile and responsive regulatory 
framework, particularly where new technologies emerge.  

The Office for Product Safety and Standards is part of the Department for Business and Trade. We strive to enhance 
protections for consumers and the environment and drive increased productivity, growth and business confidence. 

https://www.gov.uk/government/organisations/office-for-product-safety-and-standards 

 
 
 
 
 
 
 
 
 
 
 
 Thank you again for sharing the findings of your report into Mr Rahman’s death.  I can assure 
you that the safety of e-bikes is a priority for government, and urgent work is taking place to 
address the issues that you have highlighted.   

Yours 

Chief Executive 
Office for Product Safety and Standards 

The Office for Product Safety and Standards is part of the Department for Business and Trade. We strive to enhance 
protections for consumers and the environment and drive increased productivity, growth and business confidence. 

https://www.gov.uk/government/organisations/office-for-product-safety-and-standards

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