Examination of Witness

Genetic Technology (Precision Breeding) Bill – in a Public Bill Committee at 10:10 am on 28 June 2022.

Alert me about debates like this

Professor Robin May gave evidence.

Photo of Graham Stringer Graham Stringer Labour, Blackley and Broughton 10:30, 28 June 2022

We now come to Professor Robin May. We have until 11 am, so we have gained five minutes. Thank you for giving us your time and expertise this morning. Could you briefly introduce yourself?

Professor May:

Certainly. I am Robin May, chief scientific adviser at the Food Standards Agency and a professor of infectious disease at the University of Birmingham.

Photo of Jo Churchill Jo Churchill The Parliamentary Under-Secretary of State for Environment, Food and Rural Affairs

Q Good morning, Professor May. I will start with a broad question. Why is it necessary to create a new regulatory framework for precision bred food and feed products, and how will the FSA balance safety in doing so?

Professor May:

There are probably two answers to why this is necessary. Currently, precision bred foods and feeds will be encapsulated within the existing GM framework. If they are moving out of that framework, it is important to be sure that those products are safe. The key difference here with traditional breeding is one of pace. The entire point of this technology is to do things that could have been achieved through traditional breeding, but much faster. It is important that we have safety checks along that pathway.

On your question about balance, I think the key balance to strike here is between supporting innovation and ensuring safety. At the moment, our thinking around this is to have a two-streamed process for regulation, where there is a very light-touch process for anything where there is unlikely to be a substantive change in the food and more scrutiny of anything where the final food product is different. I think that is quite appropriate for this blend of technology.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q Good morning and welcome. You may have heard some of the previous discussion around labelling. Indeed, it is something the Food Standards Agency has looked into. Could you tell us what work the Food Standards Agency has done on assessing the public view on labelling and what conclusions you have come to?

Professor May:

We have undertaken quite a lot of consumer research in this area, as have many others. There are various take-home messages from that. The first is that there has been a perceptible shift in public views over the last 10 or 20 years, and there has been more interest in the potential benefits of this technology. That is mirrored by a really strong view that the public want some level of regulation and safeguards in this and other genetic technologies.

Specifically around labelling, there is a very strong majority of the public that we have polled, and that others have seen, who would like labelling of these products. There is some difference of views about what that labelling should entail, but there is a strong feeling around it. From an FSA perspective, we would in principle support that, because we stand very strongly for transparency. The problem, sitting here as a scientist, is that this is not really achievable for this particular group of foods, because the entire nature of the precision breeding legislation is to consider things that could have been produced traditionally.

Consequently, you may end up in the future with two apples, for instance, and one was produced by precision breeding that involves gene editing and the other was produced by traditional methods. It would be scientifically impossible—at least, at the moment—to tell those two apart.

Then, from my perspective, my view is that a label that is not enforceable and that might be misleading is actually worse than no label at all, because you then start to spread doubt about the validity of other labels in the food system: allergen labels, nutritional labels. While in principle I think labelling would be a good thing, the fact that we cannot enforce it makes me feel that this is not appropriate for this type of food.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q Could you say a little bit more about distinctions between the new nutritional labelling and the other labelling? I think that is important for the Committee to understand.

Professor May:

Labelling in the UK is quite a complex system. There are different legislative responsibilities in the different devolved Administrations, for instance. Broadly speaking, there are a whole variety of things, as we know, on a food label. The most obvious that most of us look at are things such as calories, fat content and salt content. There are very tight legal guidelines around what must be present on the label and that it must be accurate. Clearly, if you say that it contains 6 grams of salt and it contains 7 grams, that is not legal.

That holds also for other aspects. There are safety aspects of labelling, such as allergen information, which is critical for many of us, and country of origin. Then there are a raft of labels that may not have a legal framework, but which have recognition under guidelines—Red Tractor and animal welfare standards, those kinds of things. There is quite a lot on the label already. Under the current legislation, any food that is approved as a genetically modified food is labelled as such.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q May I press you on one final example that has been brought to my attention? It is one of a tomato that could be genetically edited to boost vitamin D content, for instance, and then the cases where some people sadly have an issue with vitamin D. Is there a danger that we could end up not alerting those people to those problems if we do not label properly?

Professor May:

That is a good example of somewhere where I think we would have a different approach. Just to go back on the approach we are currently proposing—I stress that there is nothing set in stone yet. This is an approach that we are working quite closely on with our advisory committee on novel foods and processes to develop firm guidelines. At the moment, our thinking is around this two-tier process. Tier 1, for instance, would be foods where there is no compositional change in the thing you eat. A strawberry with a different root system, but the strawberry itself is identical, would not need substantial regulation. In contrast, with the vitamin D tomato that you mentioned, the thing you eat is now different; there is vitamin D in there. Those would be risk assessed and under that risk assessment the key issue there would be one of safety.

In an example such as that one, where there may be a subset of the population for whom this is dangerous, absolutely, we would incorporate that into the risk assessment and our guidance to Ministers then would be that it would be entirely right and appropriate to label that food, possibly with a label that says, “Not suitable for certain groups.” You could imagine a scenario where a food is not suitable for pregnant women, for example, and we would certainly stand strong on the fact that the bottom line is that the food needs to be as safe as it is today. Anything that might compromise safety should clearly be labelled as such.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q All that is very interesting and very good, but I do not actually see that this is covered in the Bill as it stands. This is all going to have to follow through secondary legislation, is it not?

Professor May:

That is correct. At the moment, part 3 of the Bill encompasses the direction of travel, but not the details. That is something we are working on at the moment.

Photo of Deidre Brock Deidre Brock Shadow SNP Spokesperson (Wales), Shadow SNP Spokesperson (Environment, Food and Rural Affairs), Shadow SNP Spokesperson (COP26)

Q Food Standards Scotland produced a paper in March of this year that pointed out potential for regulatory divergence between the four nations of the UK and that the Bill could result in Ministers in England taking decisions on the approval of genome-edited food and food products with little or no involvement from Food Standards Scotland or, indeed, Ministers in Scotland. It is an independent authority, as you know. Can you tell us how that relationship will be approached and managed, if the Bill becomes an Act?

Professor May:

Happily, I am here as a scientist, so I can say that, scientifically, we have an extremely close working relationship with FSS and other regulators around the world, but the closest is with FSS.

If I give an example, at the moment, risk assessments that we might do in FSA are shared very closely with FSS. All that process is done together. Often we are using the same sets of experts—for example, to provide information. Once the risk assessment is done, it passes to a risk management process. I cannot think of an example where there is a difference in the risk assessment part between nations, because the science is the science.

Where there are sometimes differences is in the risk management area. A current example is raw drinking milk, because the science around the risks of drinking such milk is the same, but England and Scotland have different views on how much risk is acceptable. Under this framework, I would fully intend that we would share all the science around the risk assessments of a precision-bred product. Ultimately, though, the decision on a risk management basis and whether to authorise it would fall to Ministers in each of the individual countries.

Photo of Ruth Jones Ruth Jones Shadow Minister (Environment, Food and Rural Affairs)

Q Thank you for your time this morning, Professor May. We heard from a previous witness that the EU is likely to develop its work on gene editing along similar timescales. Given the need to share information, how will the FSA and the European Food Safety Authority share information as we go down this path?

Professor May:

Previously, prior to Brexit, everything was handled at the European level. As I just mentioned, we share informally the scientific advice, which is very international. Often the people who are providing evidence for a risk assessment are the same people—they may not even be within the EU, but wherever that expertise is available in the world—so there is quite a lot of sharing at that level. Currently, our only formal arrangement with the EU on food safety is around alerts. An alert for a food safety issue that may have an impact on the UK is passed to us, but something that affects countries outside and has no impact on the UK would not necessarily be shared.

I think all of us hope that there will be a reciprocal arrangement for sharing information in future. It is in everyone’s interest to share as much evidence and data as possible, but that is obviously not in my gift to control. There is recognition in the EU that the current GM framework is not fit for purpose for these kinds of products, so the process is already rolling in the EU to look at how it might be changed. How long that will take, and what the outcome might be, will obviously be very different. I would anticipate that it is going to take longer than it will in the UK to get resolution on that.

Photo of Ruth Jones Ruth Jones Shadow Minister (Environment, Food and Rural Affairs)

Q You mentioned alerts. Obviously, nobody wants to leave it until there is an alert situation, but what about developing more formal mechanisms as we go forward, rather than relying on the good will of scientists?

Professor May:

Sitting here as a scientist, obviously I hope very much that there will be good sharing. As I said before, it is in everyone’s interest to share the best science and the best evidence around this. Happily, building those relationships is not in my purview to organise, but I hope that there will be sharing, particularly around the horizon-scanning function. For us as a regulator, it is really critical to think about not just what is on our desks now, but what will be there in two, three or five years’ time. What is the science that we will need to assess the potential risks of products that I have not even thought of yet? Collaborative agreement around what might be coming down the road is really critical for all of us.

Photo of Deidre Brock Deidre Brock Shadow SNP Spokesperson (Wales), Shadow SNP Spokesperson (Environment, Food and Rural Affairs), Shadow SNP Spokesperson (COP26)

Q Something occurred to me when I was looking at the Bill again last night. Do you feel that you have sufficient capacity to be able to cope with the extra responsibilities that you are taking on? Have the Ministers given you further guarantees that you will be supported in that?

Professor May:

That is a very good question. It is hard to predict based on the estimation of what might be coming to our desks. On the one hand, the Bill will remove a tranche of products that would otherwise have been assessed as GM products. We already regulate GM products, and there is the capacity. On the other hand, the purpose of the Bill is to stimulate development in this area, so we may end up with a lot more applications, in which case we are going to need additional resource. We have taken steps in that direction, including recruiting independent experts in this area to provide scientific expertise, but if there were a large volume of applications needing consideration, we would need additional support.

Photo of Kate Green Kate Green Labour, Stretford and Urmston

Good morning, Professor May. To return to the discussion that we were having a few moments ago about information for the consumer, to what extent does the Food Standards Agency have a role in providing general public information and education? If that is not the role of the FSA, who should be doing it and how important is itQ ?

Professor May:

Our statutory mandate is to protect consumers and represent their interests as they pertain to food. That includes a communication role ranging from allergy alerts and food withdrawals through to a more nuanced understanding of the food system—food security, food poverty and those kinds of questions. At the moment, we do a fair bit of public communication around issues that we know consumers are interested in. Precision breeding, on which we have done some work, is a good example. An explainer on what genome editing and precision breeding are, and what impact they might have, is available on our website, for example.

We do a limited amount of work with schools—particularly in some regions of the UK—mostly on food hygiene. There is an opportunity to do more to explain to people the honest truth about food, and to help them to make decisions about safety and their purchasing decisions in that space. There is always room to do more. There is a lot of consumer interest in this class of foods, and I anticipate that we will do more to make sure that people have the facts about it that they will want.

Photo of Kate Green Kate Green Labour, Stretford and Urmston

Q To what extent would it be your responsibility to intervene in the event of misinformation? We are particularly concerned now about online misinformation.

Professor May:

That depends very much on the type of misinformation. Local authorities usually enforce in that area. When a product is not what it says it is, for instance, it gets seized or withdrawn from retailers at local authority level. We issue alerts, and we have a national food crime unit that is very actively involved in looking at deliberate crime in the food sector, including people selling things that should not be sold or that are misrepresented. We also do quite a lot in the detection and enforcement of large-scale issues, including supply chain problems, incorrect labelling and so on.

In the case of precision breeding, it will clearly depend on what Parliament decides, but if there were a regulation on labelling, we would need to look carefully at how that responsibility goes out to the different regulators. We would undoubtedly have a view, and we would issue information for local authorities to enforce on what should and should not be on a label.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q I have two sets of questions. First, I want to go back to labelling, because I have been mulling over your response. Is the objection to labelling the two apples that you cannot, at the moment, have a test to tell them apart? Is that, in principle, the reason for not labelling, or is there another reason?

Professor May:

That is exactly right. As the legislation stands, you might introduce what is called a single base pair chain—a tiny, one letter change in the DNA code of that apple. Those single letter changes happen all the time. If you have a field of apple trees, they will all be slightly different, even if you cloned them all initially, so we would not be able to take that apple, sequence the DNA and definitively say, “This one was created by someone using genome editing, and this one just turned up by chance in the field.” As you cannot tell those two apples apart, if there were a label on one saying “Precision bred” and a label on the other saying “Not precision bred”, I could not, as a scientist, say that that was true. That therefore raises questions in my head about why you would have a label if you cannot be sure, in the first place, that what it says is true.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q I get that, but if there were a genetic marker that you could identify, would that give you a mechanism for doing that?

Professor May:

In principle. There are ways that you might do that. One way that some developers are thinking of—in the context of protecting their intellectual property—is to make that single letter change in a background of lots and lots of other single letter changes that you already know, as a kind of barcode. Then, the concept would be to mount a defence, so that if someone steals my apple, I would be able to say, “But this apple that you are selling has that single letter change, and the other 15, all of which were in my original stock apple, so this is my apple, not yours.”

That is a reasonably good way of protecting intellectual property if you are trying to claim that something is yours. It is very difficult to use that the other way around and say, “That is definitely precision bred.” I could be growing my apples and say that those 15 changes occurred spontaneously. Again, it is not currently possible to say definitively that they cannot have appeared naturally.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q Thank you, that is helpful. My second question is about the register established by the Bill, which the Food Standards Agency is required to maintain. The Bill is fairly light on explanation as to the purpose of the register. Could you explain what you think its purpose is and who is likely to use it?

Professor May:

The idea behind the register is to have a public awareness of the products that are going through this pathway and are ultimately out on the market, in a similar way to the public registration of foods at the moment. To take a current example, if you applied to us with a novel food, you would apply with a dossier of data that says, “This is the food. This is how I produced it. Here is how I have considered safety risks.” At the point that we say the dossier is complete and sufficient for us to consider, we publish and say, “This company has put its proposal in. We are now considering that product.” In the fullness of time, we will either recommend approval or not for that product. If we recommend approval, that will get registered publicly as well, so people can see what this novel food is and where it came from, and be reassured that there has been a due process behind it.

My view as a scientist is that this should be the same for precision breeding. We should have a register that says, “Here is a product that has been considered. We have looked at it; it hasn’t rocked up without any kind of due diligence around it.” It is there in the public domain for people to see what process it has gone through and be reassured that those products have had some level of scrutiny.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q I am slightly sceptical here. I imagine one of my constituents going into a garage and buying a chocolate bar that was produced with some genetically edited sugar grown in eastern England. I am not convinced that they would check the public register to find out whether that product had been produced in this kind of way. Is the register really aimed at consumers?

Professor May:

It is aimed at some consumers, and that is true now. On average, most of us spend less than six seconds considering each food item we purchase in the supermarket, which is not enough time to consider the label. Some consumers, depending on their concerns, spend more time looking at labels. If you are an allergen sufferer, you spend a lot of time looking for allergens. If you are a vegetarian, you check that the label says it is vegetarian. We know most consumers are a bit uninterested in some of these issues, so they probably will not stop in that garage and check whether the product is on the register or not, but there will be some consumers who have strong views on this, and they may or may not wish to purchase something accordingly. It is important that the information is available for them, so that they can pause if they want to and find out. Even if most people do not, it is available, should they wish to do so.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q But that is the difference between having it on a label and on a register, isn’t it? A register requires a bigger effort to check, frankly.

Professor May:

There is a slight threshold—yes, that is true. That is not unique to precision breeding. People are quite rightly demanding more and more information about their food. The labels are not getting any bigger, and certainly my eyesight is getting worse, so there is already a shift, and we see that. Many of us are doing more and more of our purchasing online. We actually never look at the sticky label on the food item because it is on a webpage instead. People are getting more used to looking elsewhere for information, so it is not the hurdle it used to be. You are quite right: there is a limit on how much we can fit on a physical label, and it is jostling for space with allergen, nutritional and the country of origin information, so there is limited real estate on the back of the label to get this information across.

Photo of Daniel Zeichner Daniel Zeichner Shadow Minister (Environment, Food and Rural Affairs)

Q But as far as you understand it, the purpose of the register is to give that public reassurance. It is a public information issue.

Professor May:

That is correct, yes.

Photo of Jo Churchill Jo Churchill The Parliamentary Under-Secretary of State for Environment, Food and Rural Affairs

Q What learnings have you taken from looking at countries that already have taken this technology forward? I am thinking in particular of Canada, Japan and Argentina—places where we holiday and are very comfortable with eating foods there. What have we learned from looking at other countries across the world, and how have you referenced that learning in the proposal you have put forward?

Professor May:

There is a range of approaches across the world. It is probably true to say that no two countries have exactly the same approach at the moment. Perhaps I may give some examples.

At one end of the scale, you would have the current approach in the European Union, where all genetic modification, even genome editing that would fall within precision breeding, is regulated as GM and goes through a full risk assessment, often involving toxicology and quite a lot of analytics. At the other end of the scale, you have the US, for example, which has a default setting: if it is similar to something that was traditionally bred, there is no regulation.

Perhaps in between, the Canadian example is an interesting one. In Canada, they regulate the product and not the technology that has created it. They ask—let us go for an apple—“If you have created this apple, is it different from an apple I can buy currently?” If it is not different, it is not a novel food and it is not regulated; if it is different, it is a novel food and it gets assessed, regardless of how you made it. If I made that apple by precision breeding and it is different, it would be regulated; if I made it by crossing two apples in my orchard and creating a new apple tree that was different, it would still be regulated through that process. Scientifically, that is a very valid approach, but it means that you encompass within it all of traditional breeding and all the things that are done but not regulated in that way in this country.

Photo of Graham Stringer Graham Stringer Labour, Blackley and Broughton

That brings us to the end of this session. Thank you for your time, Professor May, and for the contribution that you have made.