Political Parties and Elections Bill

In Committee and earlier, I have been trying to follow the impact of the Bill on Northern Ireland political parties. In their terms, £50,000 would be a very large amount. For example, is Sinn Fein required under existing legislation to have a separate cocoa tin for their moneys for Northern Ireland? If not, and it is a national party in terms of the whole of Ireland and can raise money in the Republic of Ireland—not to mention the US—how can we measure the cut-off point? If the national organisation in Dublin donates money to the north, is that seen as money from a donor? It is important that we know how all that will work, because Northern Ireland is a critical area for elections.