A public consultation has shown broad support for controversial research being carried out at Newcastle University.
The DNA technique uses three people to create one baby in order to prevent genetic diseases being passed through generations.
The findings of the consultation will now be passed to the government and, if approved, could be made law within five years.
However, opponents of the research say that it is unethical.
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Sandiford, a former legal secretary originally from Redcar, was convicted of drug smuggling offences and sentenced to death in 2013.
Durham Crown Court heard that one of the male victims suffered a triple-fractured jaw, while left lying in the gutter, unconscious.