Alex Salmond, Scotland’s First Minister and the leader of the Scottish National Party, will address his party’s conference on Saturday afternoon.
Mr Salmond’s speech will be the highlight of this year’s conference, which has taken place in Inverness.
The SNP leader will speak to the party a day after the Justice Secretary Kenny MacAskill said many Labour politicians privately supported his decision to free the Lockerbie bomber.
Abdelbasset al-Megrahi, who has terminal cancer, was freed from Greenock Prison two months ago on compassionate grounds.
Mr MacAskill's decision to allow Megrahi to return home to Libya provoked an angry response from some.
But on Friday, the Scottish Justice Secretary told the Scottish National Party's annual conference in Inverness that many Labour politicians had privately backed his decision.
Prime Minister Gordon Brown "couldn't decide whether he was for it or against", Mr MacAskill added, while Labour's Holyrood leader Iain Gray "opposed my decision but only after I had taken it".
The minister told the conference: "Many Labour MPs and MSPs have since told me that they agreed with my decision but none of them have spoken out."
Mr MacAskill, who was given a standing ovation at the start and at the end of his speech, went on: "The Lockerbie bombing was the worst terrorist atrocity ever perpetrated not just in Scotland but in the British Isles. It will never be forgotten."
The decision on whether or not to release Megrahi was his alone, he said, and that he had been "guided by the laws of Scotland and the values of the people of Scotland".
Mr MacAskill continued: "Scotland's laws and Scottish values dictate that justice must be done but that mercy must be available. To act otherwise would be to discard the values by which we seek to live and debase the beliefs which we seek to uphold."
Earlier, Finance Secretary John Swinney issued a direct appeal to the Chancellor to pump more money into the Scottish economy.
In a speech devoid of any significant new pledges, Mr Swinney insisted the SNP has what it takes to get Scotland through the recession but that Alastair Darling should accelerate money from future budgets to boost the Scottish economy now.
He said: "The Chancellor has the opportunity in his pre-budget report to accelerate capital expenditure. For every £100million in extra capital spending we can safeguard 1,500 jobs in our country.
"We call on the Chancellor today to deliver the resources and the opportunity to enable this government to protect the livelihoods of the people of our country."
He also said that only an SNP government in Holyrood has the best interests of Scotland at heart during the recession, in comparison to the Westminster government choosing to spend money on the Trident missile system.
He added: "Scotland's political and constitutional agenda moves ahead only when the driving seat is occupied by the SNP. As public spending gets tighter, and the absurdity of wasting billions on new Trident missiles becomes ever more obvious, the need for Scotland to take the financial and economic decisions that affect the future of our country are absolutely paramount at this stage."
