Constitutional practice is quite diverse when it comes to this latter issue, often combining rules on incompatibility of functions with some form of obligation to disclose all sources of income, employment and/or assets. On the other hand, private occupations are in principle compatible with parliamentary mandates. They are also viewed as a means for preventing such a mandate from becoming a fully-fledged profession and for enabling different professional groups to be represented in parliament; however, certain countries have also in certain cases introduced incompatibilities with private functions to prevent collusion between public and business interests. This new provision is, therefore, not at odds with constitutional or other provisions found in other countries. At the same time, the legal consequences of infringements of incompatibility rules, including a possible termination of mandate, could be usefully specified in the Constitution.