Before the Brexit result, Cameron was preparing to have a domestic policy drive next week to reunite his party.
His other main policy drive has been to slash interest rates to an unprecedented level of nearly zero, flooding the system with liquidity.
Mr Grieve also signalled that the Conservatives would have a New Year policy drive aimed at ending the "conveyor belt to crime", praising initiatives championed by the former party leader Iain Duncan Smith to target children at risk of falling into delinquency before they enter school.
Findings on these aspects of household space heating are discussed in the context of the New Zealand government's policy drive for a more sustainable energy system, and the implications for climate change policy.
Further complicating the current policy drive is that Batswana rural communities (and still some urbanites) are entrenched in livestock farming, so there simply is not enough land to be demarcated into viable ranches for everyone, not now and certainly not in future.
Our research revealed a much stronger preference for deaths in a hospice than had been anticipated, leading us to take a qualified stance on the current policy drive in favour of home deaths by those charged with delivering UK cancer and palliative care services.
His utterly foxy policy drive so far has proven the cynics right.
But in this new era of "alternative facts," some criminologists are expressing concern that the integrity of crime data used to shape criminal justice policy, drive decisions about law enforcement funding and personnel, and tackle problems like gun violence could be under threat.
There is now a strong policy drive to implement EHRs in mental health settings.
The policy drive for the UK National Health Service (NHS) has focused on the need for high quality services informed by evidence of best practice.
The initial "research to policy" drive lost momentum because of poor in-country communication of the research, coupled with weak public understanding of, and engagement with, science.
