In this article an analysis is made of the voting behaviour of Members of Parliament and political parties after the parliamentary debate on the investiture of a new cabinet. The voting behaviour does differ from the classical coalition-opposition voting pattern. Indeed the emerging general pattern shows that a majorityof the members of the coalition parties - but by no means all of them - approve the governments' declaration and that a majority of the members of the opposition rejects it. Deviant voting behaviour after this parliamentary debate is not a general phenomenon and mostly only some majority members vote contrary to their whip's instructions. This dissident stand is taken mainly when cabinets can rely on a broad parliamentary majority. This deviant voting seems to be positively correlated to the size of the coalition. The directly elected Members of Parliament most easily vote in an unorthodox manner. The individual Members of Parliament motivate their deviant vote referring to the opinion of their electorate.