What Pryce justice?

The real value of juries.

One of our national vices is to sneer at those who ask basic questions. This in turn creates a general reluctance of people to ask such questions, so as not to risk “looking stupid”. It is better to keep one’s mouth closed and be thought an idiot, we are often told, than to open it and put the matter beyond all doubt.

Yesterday it was revealed that the jury in the trial of Vicky Pryce had asked some straightforward questions of the judge. One or two of the questions seemed very basic indeed. But the jurors were right to ask those questions if there was genuine uncertainty by any one of them. A person facing a serious criminal charge should be glad of a jury which asks such questions of the judge before convicting, rather than one which has the same questions but keeps silent and then convicts beyond reasonable doubt.

We know very little as to why this particular jury asked those questions. It may be that all twelve of the jurors were equally puzzled on each of the queries posed, though this is highly unlikely. It could be that there was just one juror who was not accepting what the others were saying, and so it was decided that the judge would be better placed to give the necessary guidance in simple language and an authoritative tone. Given that the jury was unable to agree even a majority (10-2) verdict, it is probably the case that not each question was posed by all jurors together.

It would have been far better, of course, had the jury had understood all the relevant points to begin with. But the case which was tried (and will be retried next week) is not simple on either its facts or the law. The judge’s directions to the jury were some seventeen pages long. The jurors were charged with finding guilt or innocence in respect of an action many years ago to which there was no other direct witness evidence other than from the defendant and on the basis of substantial circumstantial evidence. And to these facts the jurors were required to apply the rare “marital coercion” defence, the exact scope of which remains unclear even to many lawyers. 

Juries are certainly not perfect. Any sentimentality about the wonders of trial by jury can often not survive experience of watching one in action or serving on one. My own anecdote is that I once saw a miscarriage of justice when a prosecutor put an early question in such a pejorative manner that the entire jury seemed at once to turn against the defendant regardless of his answer (the defendant was convicted, but he appealed and was then acquitted).

The real value of juries is in what they prevent others from doing. Without juries in criminal cases, decisions on serious criminal matters would be left entirely to judges. Some may say that would not be a bad thing; but when one’s defence on a serious matter depends on assessments of disputed evidence, it is better to have ten to twelve people convinced before any sanction is imposed rather than just one. And juries act as a brake on any biases judges may develop over time in respect of the credibility or otherwise of, say, police or expert witnesses.

Indeed, the main merits of the British constitution are in respect of what each part stops another part from getting away with. The best argument for the Crown is in respect of the ultimate powers others do not have because of its very existence. The House of Commons can sometimes stop the civil service and ministers getting carried away either in bad law-making or implementation of policy; and the House of Lords can be a check on sloppy legislating by the House of Commons. The Courts can review and quash bad laws and decisions, and Parliament can change the law if the Courts’ decisions are unwelcome. No part of the British polity is really that impressive on its own terms; the value of each component lies primarily in the abuses it stops others committing.  Juries are no different.

Some juries are strange, and they may be stranger than we can dare to imagine. Some individual jurors do things so patently weird that one despairs. And some jury verdicts are so perverse that one can only wonder what they are thinking, if they were thinking at all. But like Churchill’s maxim about democracy, juries deciding serious criminal matters are better than the alternatives.


David Allen Green is legal correspondent of the New Statesman

Serious-looking Victorian jurors. Image: Hulton Archive/Getty Images

David Allen Green is legal correspondent of the New Statesman and author of the Jack of Kent blog.

His legal journalism has included popularising the Simon Singh libel case and discrediting the Julian Assange myths about his extradition case.  His uncovering of the Nightjack email hack by the Times was described as "masterly analysis" by Lord Justice Leveson.

David is also a solicitor and was successful in the "Twitterjoketrial" appeal at the High Court.

(Nothing on this blog constitutes legal advice.)

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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.