"I don't want to use any extraordinary measures in the transitional period, and I would not allow myself or anyone else to go against the law, " he said.

CNN: STORY HIGHLIGHTS

However, it would go against recommendations made last week by the Scottish Law Commission, which said any change to the law should not be applied to cases retrospectively.

BBC: Double jeopardy 'to be abolished'

Look at what the individual has done - is this a concerted attempt to have a go at one individual in a way that passes the threshold for offences against the law?

BBC: New Twitter abuse laws not necessary, say police

Recipients first must go through an application process that includes a pledge not to profit from trade in human tissue, which is against federal law.

FORBES: Dead Man Working