What are the rules about lobbying by former ministers?published at 14:15 British Summer Time 13 May 2021
Reality Check
When senior ministers leave their government post they are expected to wait three months before taking on a new job.
After that, for two years after leaving the post, they are expected to seek advice from the Advisory Committee on Business Appointments (Acoba), external before accepting a new role. During that two year period they are not supposed to lobby government at all.
The committee will consider whether the new role could be seen as a "reward" from the prospective employer for favourable decisions the ex-minister may have made whilst in power.
And it also looks at whether the former minister has access to insider information which could give their new employer an unfair advantage.
As David Cameron left office in July 2016, the contact in 2020 was well outside the two year period.
You can read more about the rules for former ministers here