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Information relating to the ‘rule of 6’.

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First published:
31 January 2022
Last updated:


28 January 2022


ATISN 15909 – Rule of Six 

Thank you for your request to the Welsh Government for information under the Freedom of Information Act (2000) received on 29 December 2021.  You requested the following: 

1.    The science regarding the rule of 6, by science NOT the link to some document without verifiable data.

a) The experiments and supporting data

b) the air flow dynamics of the area where the tests have been 
carried out.  (to see the actual air flow and not the predicted and 

2.    The explanation by the First Minister of his understanding, not links nor other people's opinions 

Our Response

On Q1a, the Welsh Government does not hold experimental data.

On Q1b, the Welsh Government does not hold this information. 

However, scientific evidence supporting the government response to coronavirus (COVID-19) can be found using the link below:   

Scientific evidence supporting the government response to coronavirus (COVID-19) - GOV.UK (

The specific paper considering the role of ventilation in controlling SARS-CoV-2 transmission may also be of interest: 

S0789 EMG Role of Ventilation in Controlling SARS-CoV-2 Transmission.pdf (

On Q2, the provisions enshrined within the Freedom of Information Act 2000 provides right of access to what is held as recorded information at the time the request is made. However, the act does not require us to share our opinion on matters. Consequently, we have concluded that this aspect of your request is not a valid Freedom of Information request and therefore we will not be responding to this aspect of your request. 

Next Steps

If you are dissatisfied with the Welsh Government’s handling of your request, you can ask for an internal review within 40 working days of the date of this response. Requests for an internal review should be addressed to the Welsh Government’s Freedom of Information Officer at: 

Information Rights Unit, 
Welsh Government,
Cathays Park, 
CF10 3NQ 
or Email:

Please remember to quote the ATISN reference number above. 
You also have the right to complain to the Information Commissioner. The Information Commissioner can be contacted at: 

Information Commissioner’s Office, 
Wycliffe House, 
Water Lane, 

However, please note that the Commissioner will not normally investigate a complaint until it has been through our own internal review process.

Yours sincerely,