I still do not really understand the point. I shall come on to give some examples that may be helpful in explaining the thinking. This part of the Bill is quite straightforward because, as several people have told us, it implements a particular wording in the manifesto. I am trying to explain the background to that.
I cannot accept the argument of the noble Lord, Lord Wallace of Saltaire, although it is very good to have him involved in this debate since we worked together in the coalition. There is no parallel between our recent parliamentary elections or the matters mentioned by the noble Lord, Lord Oates, such as the EU referendum, and the proposed thresholds. In addition to the excellent points made by my noble friends Lord King and Lord Balfe, it is just not a fair comparison. It is right that strong support be required for strike action ballots, because strikes can affect large numbers
of the public who do not get a say in the ballot and are dissociated from the relevant trade dispute. In contrast, the public are able to participate in elections and have a democratic say in the outcome. As my noble friend Lord King said, they do not face a binary choice and are choosing between a range of candidates. It follows that the successful candidate may have a smaller share of the overall vote.
I also realise that noble Lords are concerned that the treatment of abstentions, which I think is what the noble Lord, Lord Oates, was getting at, would make the thresholds harder to meet. Our objective is to ensure that strikes can only ever be the result of a clear, positive decision by union members, because the action can go on to cause widespread disruption for the public. Union members are free to abstain from voting, but this is not a positive vote. It is only fair that it does not count towards the threshold.
Recent events show that the threshold can be achieved when union members feel strongly about the issues that are relevant. For example, last year, RMT members were balloted on the night tube, resulting in a turnout of 53% and support of 48%. That means that 91% of voting members supported industrial action, surpassing the thresholds and putting beyond doubt the legitimacy of the ballot mandate.