Justification Decision (Scientific Age Imaging) Regulations 2023

Debate between Lord Winston and Lord Sharpe of Epsom

Monday 27th November 2023 Lords Chamber

[Lord Sharpe of Epsom (Con)]

I take the noble Lord’s point; obviously, I will take it back to the Home Office and make sure that it is well understood.

On the use of X-rays, I remind the House that the Ministry of Justice has determined the practice is justified under the Justification of Practices Involving Ionising Radiation Regulations 2004. The Ministry of Justice made this decision to justify the practice independently from the Home Office, as they are functionally separate on the policy of age assessment as required by the 2004 regulations.

Your Lordships will know that X-ray scans are commonly used in the UK for medical purposes by doctors and dentists. Although age assessment is for non-medical purposes, images will be taken by qualified professionals who are trained to minimise exposure to ionising radiation and any other potential risks. We expect all professionals to abide by their own professional guidelines, as well as any set out in Home Office guidance, but medical professionals are required by the relevant legislation for ionising radiation.

The Age Estimation Science Advisory Committee suggests that any risk associated with this low level of exposure to ionising radiation is minimal when compared to the benefits of swifter, more informed age assessment in terms of both safeguarding and well-being.

[Lord Winston (Lab)]

The word “benefits” applies to the subject who is being X-rayed, does it not? Can the Minister tell us what the benefits to that subject are because it does not apply otherwise?

[Lord Sharpe of Epsom (Con)]

I am coming on to some more of the noble Lord’s more detailed questions; I will endeavour to answer that question in a second.

The Ministry of Justice has undertaken a detailed consideration process to ensure that the use of X-rays is proportionate and justified. The noble Lord asked how we will ensure that the use of these scientific methods is ethical and not harmful to children. We have a statutory commitment to safeguard the welfare of children. One of the reasons for introducing scientific age assessment is to better protect against adults being treated as children in order to ensure that vulnerable children can swiftly access the support that they need. The use of ionising radiation is, for instance, highly regulated by the Justification of Practices Involving Ionising Radiation Regulations 2004, which require demonstration that the individual or societal benefits of their use outweigh any health detriments. For the methods that the Age Estimation Science Advisory Committee proposes, the ionisation risks are extremely low.

The Home Office will ensure that any methods used comply with all regulatory requirements and standards. AESAC suggests that radiation exposure is minimal when compared to the benefits of a more informed age assessment. For the purposes of the methods that the committee proposes, the ionisation risks are extremely low, as I have said. They are typically less than 0.001 of a millisievert for an extremity X-ray, such as the wrist, or 0.2 of a millisievert for a dental—I will not be able to pronounce this—X-ray. Those radiation risks relate to something like less than two hours on an international flight, I believe.

I turn to the AESAC advice and the automatic assumption. On the Secondary Legislation Scrutiny Committee’s concern that the application of negative inference is contrary to advice provided by the Age Estimation Science Advisory Committee, let me assure the House that this is not the case. In answer to the noble Baroness, Lady Hamwee, I should also say that the Government’s Chief Scientific Adviser, Patrick Vallance, and the Chief Medical Office, Chris Whitty, have supported this. The scientific advisory committee recommended that no automatic assumption or consequence should result from a refusal to consent. Taking a negative inference does not result in an automatic consequence; rather, the negative inference is taken into account as part of the overall decision.

I forgot to address the points raised by the noble Lord, Lord Winston, about various protected characteristics: environmental factors, race, diet and so on. We are conscious, of course, that methods to assess age such as bone development are affected by factors such as ethnicity, body mass, sex, puberty and so on. We are seeking scientific advice to explore this issue further and any steps we can take to mitigate these impacts. The Age Estimation Science Advisory Committee’s advice suggests that, although skeletal maturation may differ slightly depending on ethnicity, there is also some evidence to suggest that differences in nutritional status, disease and social status may have more influence on maturation timings. In addition, dental development is less affected by such socio-economic factors; that is one of the reasons why the AESAC recommends using multiple biological areas of interest, which the Home Office is proposing to do.

I want to take this opportunity to thank the Age Estimation Science Advisory Committee for its report because, as I have set out, the science and analysis is being used as per the committee’s recommendations. The Home Office will not use the scientific methods to determine an exact age or age range; rather, it will use the science to establish whether the claimed age of the age-disputed person is possible. It is key that methods used for age assessment have a known margin of error. Combining assessment of dental and skeletal development of multiple body areas is important as it increases the accuracy of the approach. The Age Estimation Science Advisory Committee advocates for a likelihood ratio method, which offers a logical and consistent summary of the evidence and permits greater confidence in the assessment of whether the claimed age is possible. The likelihood ratio is widely recognised as the appropriate way to summarise evidence, and this approach offers the best way forward for the introduction to scientific age assessments to strengthen our system.

The noble Lady Baroness, Lady Lister, asked who we have consulted. The Ministry of Justice consulted all the statutory consultees listed under the regulations, including the UK Health Security Agency and the Health and Safety Executive. The full list can be found in our decision document. In the review of the consultees, the Health and Safety Executive, the Office for Nuclear Regulation, the Environment Agency, the Scottish Environment Protection Agency, Natural Resources Wales and the Department of the Environment (Northern Ireland) have confirmed that this application falls outside their regulatory interests. However, the UK Health Security Agency, the Health and Safety Executive and the Food Standards Agency advise the following:

“The decision to use X-ray imaging appears well considered and appropriate to minimise any individual’s radiation exposure”.


All exposures to ionising radiation will fall under the remit of the Ionising Radiation (Medical Exposure) Regulations, which place many responsibilities on those carrying out exposures. There should be careful consideration to ensure that the contracted parties carrying out the exposures conform to these regulations and that the predicted doses for both dental and wrist X-rays are appropriate estimates.

I have probably spoken for long enough—I have definitely spoken for long enough. I owe the noble Lord, Lord Ponsonby, an answer to his question about children pretending to be or behaving as adults. I will come back to him on that; I do not have the detail to hand, as your Lordships can imagine. I think I have addressed the majority of the issues that were brought up. As I said earlier, I am grateful for noble Lords’ constructive and helpful suggestions and questions. I trust that noble Lords will now recognise the need for this instrument; I assure them that the Government are fully committed to working towards a better-informed and more consistent age-assessment process. This instrument is essential to that aim; I therefore commend it to the House.