A public inquiry was the only way to get justice for those affected by this scandal, which went on for two decades and was covered up for 20 years more, writes Diana Johnson MP

I categorically disagree with the comments from Simon Jenkins about the use and purpose of public inquiries, and with his particular reference to the NHS infected blood inquiry (Public inquiries are institutionally corrupt, we should just give the money to victims, 17 June) .

After nearly 40 years of campaigning and the refusal by the state to acknowledge the harm done to thousands of people, the NHS infected blood inquiry was finally announced in 2017 when all opposition parties in the Commons came together, threatening to vote against Theresa May’s minority government.