1. Potential for confrontation between the devolved Parliament in Edinburgh and the Westminster Parliament. For example, if the Westminster Parliament has a Conservative majority and the Edinburgh Parliament has a Labour majority.
2. Under the devolution agreement there is going to be anger when MPs from Scottish constitiuencies can go to Westminster to vote and influence English affairs.
3. When there are disagreements between the Parliaments, it is most likely that the Scottish Parliament will have to make concessions because it is the Westminster Parliament that retains Sovereignty. In theory, Westminster has the power to abolish the Scottish Parliament just like it did to the N.Ireland Stormont Parliament.
4. With devolution the amount the Scottish Parliament can spend is determined by Westminster MPs voting upon our Block Grant. The Barnett Formula allocates how much money the Scottish Parliament can spend. But the formula is constructed in such a way that if a Westminster Parliament cuts public spending for England it would mean the calculation with the Barnet formula would force the Scottish devolved government cut its expenditure too.
5. There is ambiguity between certain responsibilities. For example, the Scottish Parliament's Health Minister is responsible for Scottish hospitals and public health - but it is the Westminster parliament that decides on things like euthanasia or cannabis legalisation for medicinal purposes. Similarly, it is unclear who will speak up for Scotland in Europe. There will be times when the Scottish Executive (ministerial team) is best equipped to speak on issues (eg.in promoting the Highlands & Islands) but the UK will have to represent Scottish views instead.
6. The devolved Scottish Parliament is powerless in many ways.
It cannot:
change electoral law, end nuclear dumping, change the rate of VAT, legislate on defence,
regulate film classifications & broadcasting,
alter the laws on drug misuse,
remove the monarchy,
end nuclear waste processing,
change laws on firearms,
decide foreign policy,
change tax duty on alcohol, cigarettes or petrol,
regulate employment health & safety,
award titles of honour,
legislate on immigration,
alter business tax,
remove the House of Lords,
make decisions on currency,
set or influence interest rates,
regulate financial institutions and services,
legislate on industrial relations or equal opportunities,
change the constitution,
increase benefit payments and pensions,
choose how to distribute lottery money,
take responsibility for all transport in Scotland.