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Weighing up the evidence in the Cuadrilla fracking inquiry: how do inspectors decide?

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Ruth HayhurstUK
Weighing up the evidence in the Cuadrilla fracking inquiry: how do inspectors decide?
In this week's newsletter: the boss of the UK's planning inspectors tells us how they sift the evidence after a public inquiry. Plus North Yorkshire calls for a shale gas clean-up fund, new fracking controls come into force and INEOS face criticism for private meetings with councillors.

The Planning Inspectorate announced this week that the report on the Cuadrilla fracking inquiry would be submitted by early July. The inspector, Wendy McKay, will make a recommendation to the Communities Secretary, Greg Clark, on whether or not Cuadrilla’s shale gas plans in Lancashire should go ahead. But with 19 days of evidence, seven parties, 26 expert witnesses and hundreds of documents to consider how will she make up her mind?

Ben Linscott, Group Leader at the Planning Inspectorate, told us how inspectors make their decisions. Mr Linscott, who has been an inspector, spoke generally about the decision-making process and his comments are not specifically about the Cuadrilla appeal or public inquiry.

“Vast amount of evidence”

“As an inspector you will be faced with vast amounts of documentation – probably much of which was never referred to, let alone opened, in the inquiry. You have to make a judgement as to how much of [the documents] you actually read or dip into.”

“The last big case that I did was about a compulsory purchase in Rochdale. At the beginning of the inquiry, which was six weeks, I was walked into a hotel function room where the parties had created a library for me. There were 12 parties, all with QCs. The library was a series of document boxes laid on their sides, 20ft long and 6ft high.”

“The inspector has to approach the appeal on the basis of the principal controversial issues that separate the parties. It’s about distilling in your mind the central points you need to deal with.”

“You will have that in mind in the way that you conducted the inquiry.

“When you leave the inquiry you need to be satisfied that you’ve understood everyone’s cases and that you’ve asked questions where the written or oral evidence didn’t make plain what the case was.”

Mr Linscott said planning inspectors needed a “high degree of professional confidence and competence”. They were usually accomplished professionals before becoming an inspector and they will have gone through a challenging selection and training process.

“It is rather like being a judge or a magistrate. You can be a perfectly good solicitor who can advocate for somebody else. But the position you are then put in as a judge is to hear two often powerfully argued but opposing cases and you need to make a judgement as to which is the reasonable or right in law approach to take.

“So we are looking for that capability to reach an impartial, informed and lawful, therefore defensible, judgement”.

The report

“Once you are satisfied that you have got an evidence base that is around those central controversial points then what I would do is frame the structure of a report”.

“You have to create a document which gives the Secretary of State sufficient information to gain your view, both on the professional planning considerations and any legal points that were put to you. But it must also give the Secretary of State scope to disagree on evidence that was put to you by anybody.”

“The Secretary of State mustn’t be put into a position where he can’t do anything other than agree with you.”

“It has to be a firm professional view but equally a balanced report which identifies what everybody said in a neutral and impartial way.”

“When you start to put down your professional thinking you then inevitably go one way or the other. Once you’ve gone the way that you have, it has to come across with conviction otherwise it’s unlikely to prove satisfactory in court if it were challenged.”

“Provided that you assimilate all of that vast amount of evidence, look for where there is contradictory evidence and then rationalise it and come to a reasoned view as to where you think the balance should lie, that’s pretty much all that is required of you. It’s no mean feat, I have to say from experience.”

Balancing the arguments

We asked Mr Linscott how an inspector decided what weight should be given to different issues in an inquiry. He said there was more scope for discretion in some areas than others.

“On the weight to be attached to a relevant development plan, an emerging policy, a supplementary planning document or a government statement, it is quite difficult for an inspector to do anything other than prescribe the conventional weight which you will find in the National Planning Policy Framework, planning policy guidance and sometimes in court judgements.”

But he said where there was competing or contradictory evidence an inspector has to use his or her judgement and they had “huge licence and discretion to apply that judgement reasonably”.

The test is the Wednesbury principle. This states that a decision is unreasonable if it is so unreasonable that no reasonable person acting reasonably could have made it. Mr Linscott said:

“I can’t remember the last time an inspector’s decision was struck down by a court on the basis of the judgement that he or she reached being unreasonable.”

Public comments versus professional witnesses

The Cuadrilla public inquiry included four sessions at which 143 members of the public gave their views both in support and against the appeals. We asked Mr Linscott what significance the public comments have in a final decision or recommendation.

“Once an inquiry is open the inspector has vast discretion as to how he or she runs it and the rules stop pretty much at the point at which the inquiry is opened.”

“The main principle which is governing what the inspector will do is firstly to ensure natural justice so that everybody who has a legitimate and relevant planning point to make should be given the opportunity to make it and shouldn’t be disadvantaged by their resources, experience and passion as opposed to their dispassionate position that often professional witnesses and advocates will take.”

“Skilled inspectors would allow them to say what they wanted to say but would also probably probe so that they always got them back to the point of local impact. Where they did have relevant points on the local impact they would make sure they got answers to questions they had.”

“In law, pretty much anything can be a material consideration. So interested parties’ views would be material consideration provided that they addressed matters that were relevant to the decision that the decision-maker has to take. It then comes down to the weight which is attached to those material considerations by the decision-maker governed by Wednesbury principle and the impartial judgement.”

National policy versus local impact

The Cuadrilla inquiry heard arguments about both national policy and the likely local impact of the proposed fracking sites. We asked how an inspector would balance the two.

“[National policies do] attract very substantial weight. But that’s absolutely not to say that they are an automatic trump card for the decision-maker in the face of a significant local concern, which would have a significant impact.”

“If you looked at solar parks, there is a very strong steer in the National Planning Policy Framework, Planning Practice Guidance and the National Planning Statement on energy on the place of solar in the planning policy framework. But you will see many appeal decisions where, notwithstanding all that, the local impact has been deemed to be too great to permit it to go ahead.”

“It is an entirely legitimate material consideration provided that it is founded on proper planning concerns and they are evidenced and it’s not just ‘we don’t want that development here’.”


Both sides in the Cuadrilla inquiry pointed to past cases or previously-agreed conditions to support their arguments.

Planning inspectors are required by law to take account of past decisions when their attention is drawn to a case which is similar to the one they are considering. If they take a different decision they need to explain why. But Mr Linscott said there were practical difficulties with applying one case to another.

“It is nigh on impossible to be confident that you have been given, as a decision-maker, all the necessary evidence which would allow you to conclude that they are alike.”

“However, it is not sufficient to say that ‘I didn’t see all of that evidence and I haven’t seen the site so therefore I can’t attach any weight to it’ You’ve got to satisfy yourself if you’re not going to attach weight to it that there are sufficient distinctions in the documents before you to say that you can draw a reasonable distinction, otherwise the case is vulnerable to challenge.”

On practical issues, such as proposed noise limits, he said, inspectors were more likely to look at the specifics of a site, rather than accepting what had been applied to a different site in the past.

Local councils and planning inspectors

We asked how an inspector’s judgement was likely to differ from that of the local council which made the original decision.

“A local planning authority is probably looking at largely the same factors and essentially the same evidence as an inspector.”

But he added:

“However much consultation there is at planning application stage and however much discussion and negotiation may proceed the council making its decision, it’s often only at appeal stage that the appellant realises the precise nature of the council’s concerns.”

“New evidence often arises on appeal which the local planning authority hasn’t taken into account or has a different take on.”

“Sometimes it is because the applicant didn’t do as good a job as he should have done at application stage. It’s sometimes because the council didn’t really engage with the applicant at application stage. And sometimes it is a surprise to get that decision. Sometimes it’s because the planning officers did support an application and the planning committee didn’t.”

The inspector and the Secretary of State

All appeals are technically to the Secretary of State. But almost all are transferred by a statutory instrument to planning inspectors. In the Cuadrilla case, the Secretary of State, Greg Clark, recovered the appeal and will make the final decision.

Of the 10,201 appeals from April 2015-March 2016, just 67 were recovered. We asked how the Secretary of State’s judgement compared with that of the inspector.

“It is very rare in my experience for the Secretary of State to identify issues that the inspector didn’t.”

“It’s not inconceivable – and I’ve seen this a few times recently – that things happen after the inquiry has closed which the Secretary of State is bound to take into account.”

“So for example there’ve been various written statements, whether it is housing policy or onshore wind policy, made after the closure of the inquiry and the Secretary of State has taken them into account.”

“We’ve had a few cases where an inquiry has had to be reopened because something has emerged.”

“Natural justice requires that the Secretary of State goes go back to the parties. And sometimes that might prompt a supplementary report to be sought of the inspector.”

Challenging the decision

Mr Linscott said the Secretary of State’s decision could be challenged.

“Whichever way it goes there are opportunities to challenge it in the High Court.”

“If the Secretary of State were to dismiss the appeal then an appellant has a right of appeal. If it is allowed, the council has a right of appeal.”

“An interested person also has the right to appeal. That is someone who has an interest, not necessarily in the land, but in the outcome and would be affected by it and took an active part in both the planning application and the appeal.”

Other news

Council calls for mandatory fracking clean-up fund

The shale gas industry should be required to establish a fund for the clean-up of any contamination from fracking, councillors in North Yorkshire have said.

A report from a county council committee said the fund should be established early and it should be mandatory.

The report, which will be voted on later this month, stepped back from requiring individual companies to pay a bond when they applied for planning permission to explore for shale gas. But it said:

“There is a strong case to suggest that the government should require the industry to develop mutual funds for bonds, early on in the development of the industry, to deal with the occurrence of environmental contamination.”

The report raised concerns about the impact of a shale gas industry on the area and its tourism industry. It concluded:

“A proliferation of well sites in a concentrated area could impact negatively upon tourism – one of North Yorkshire’s key industries.”

It called for baseline studies of public health and methane emissions in fracking areas and criteria on the siting of fracking sites in North Yorkshire. More details

INEOS plans private shale gas meetings for parish councillors

The would-be shale gas producer, INEOS, is promoting its view of the benefits of fracking to parish and town councils in its English exploration areas at a series of daytime meetings next month.

Opponents of the company’s activities have described the meetings as a “sham consultation” and “a slick PR exercise”. They have criticised the events for excluding the public and any councillors who have day jobs.

The company has arranged three meetings in licence areas awarded during last year’s 14th round (see map). They are on consecutive dates during May at Chesterfield in Derbyshire, Frodsham in Cheshire and Malton in North Yorkshire.

The invitations, sent to clerks of Parish and Town Councils, say the meetings are “part of INEOS’ commitment to open, transparent and ongoing communication with the communities in its licence areas.”

The Frack Free Dee coalition has advertised what it calls a peaceful demonstration outside the meeting in Frodsham. More details

Two new IGas sites close to earthquake epicentre

Two potential new drilling sites acquired by IGas in Cheshire are close to the epicentre of an earthquake in 1750 which was one of the biggest recorded in the UK, according to local people.

Star Energy, a subsidiary of IGas, has acquired the sites at Bridge Trafford near Chester.

Huw Rowlands, who farms within 500m of the sites, said:

“If they were looking for the worse possible place for environmental damage from a fracking operation, then this is it.”

He said a geological fault runs across one site and there is a junction of faults beneath the other. One site was close to the epicentre of an earthquake in 1750 which was one of the biggest on record in the UK, he said.

They are also close to drinking water boreholes, a landfill site, Victorian railway embankments and a high-pressure gas pipeline.

Mr Rowlands, who rears traditional Red Poll beef cattle, on the meadows, said

“We are now under siege by IGas, who can frack beneath our entire farm assuming that they gain the relevant consents.”

“Given the powers that central government has assumed to over-rule any authority which opposes fracking, my fear is that the destruction of the farm and our herd of Red Poll cattle has moved a step closer.” More details

Some fracking controls now in force – but not all

Rules on fracking, set out in the Infrastructure Act, came into force on 6th April.

They are in section 50 of the act, which sets the depth at which fracking is prohibited and creates an official definition based on the volume of fluid used. The rules also identify requirements that must be met before fracking is allowed to go ahead.

The Energy Minister, Andrea Leadsom signed a commencement order for the rules on 24th March 2016, the day the House of Commons rose for Easter.

But proposed restrictions on hydraulic fracturing from the surface of some landscape, wildlife and drinking water areas are not yet in force. The government has not yet published the result of a consultation which ended 16 weeks ago.

A planning application is due to be decided in North Yorkshire next month which could see the first hydraulic fracturing in the UK since 2011. More details

Ruth Hayhurst is the only UK journalist reporting from the frontline of fracking in the UK. You can read her daily updates at

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