In the hours following the icy gales of Storm Doris, I caught up with Lynne at Taunton’s most distinguished hotel, The Castle. This is the final instalment of our chat. You can read the others here.

You were and still are a campaigner against important issues such as Female Genital Mutilation (FGM), child abuse and violence against women. However, perhaps your greatest achievement is being the originator and architect of the equal marriage act, which was passed into law in 2013. No party had equal marriage in their 2010 manifestos nor was it part of the coalition agreement. Why did you take this issue on and why is it important to you?

When we entered into coalition, 20 ministerial posts had to be filled. After two days, I received a call from Nick Clegg offering me the post of Equalities Minister. In fact, I ended up with three-quarters of me as a Home Office minister and one-quarter as Equalities Minister. So I’m a minister in the coalition, we have Liberal Democrats in government, and I’m thinking to myself ‘I’ve got to do something to make sure everyone knows that there are Liberals in this government’. It never crossed my mind that it wasn’t in the manifestos or portfolio because to me it was an obvious piece of equalities work that needed doing. Labour were great with civil partnerships, but I thought they were a kind of apartheid – one rule for gay people and one rule for straight people. My view is that you should have marriage and civil partnerships for both gay and straight, both for both. The state’s job is to facilitate that union, not to judge if one is good or one is bad.

We were all new Liberal Democrat ministers and didn’t have a clue what we were doing, so the Institute for Government put on a morning instruction for newbie Liberal ministers. They invited Michael Heseltine and Andrew Adonis to advise us. Heseltine said ‘you are going to be really busy. You do not understand the tsunami of work that will hit you when you become a minister. You will have debates, orals, speeches, correspondence and endless other things. Your diary will be full from morning to night. If you do not ruthlessly prioritise one or two things you want to get done in your time in the sun, you will not achieve it. You will be a very good minister doing very important things but you won’t have done anything you went into politics for’. Adonis encouraged us to trust our civil servants. He said it wasn’t like The Thick of It or Yes Minister, although, I have to say, I thought it was quite like Yes Minister! He told us  ‘If you don’t direct your civil servants, they will fill your diary from first thing in the morning until midnight, all with very worthy things but you’ll just be executing what they want you to do. If you trust your civil servants, you have to direct them. They will go to the ends of the earth for you’. As I walked back from the Institute for Government to the Home Office, it just crystallised in my brain that I wanted to do same sex marriage because it was a piece of equalities legislation that needed doing. I came back into my office and said to one of my assistant private secretaries ‘I want to do same sex marriage, what do I do?’ That is literally how it started.

If I hadn’t had that morning, we would not have same sex marriage. It’s really strange how things happen.

Can you explain the process? What did you have to do?