cancellation of its registration may only proceed by decision of the competent EDRB and in those circumstances provided for in the constitution or in law. These vary from country to country and include failure to comply with the requirements for obtaining registration, such as having the minimum number of members required by law; grievous and systematic breaches of the party’s legal obligations; failure to participate or present candidates in a regular general election or over a certain period; failure to obtain a minimum percentage of the vote in a particular regular general election, or to achieve representation in the legislature; and failure to hold internal party elections over a certain period. 436. In Germany, the jurisdiction of the Constitutional Court to declare unconstitutional political parties, movements or other forms of organization whose objectives, actions or conduct do not respect the basic principles of democratic and constitutional government was established by the Fundamental Law of 1949. It was used, for example, in 1952 by the Federal Constitutional Court to prohibit the Socialist Party of the Reich and in 1956 to prohibit the Communist Party of Germany. Similar powers exist in Chile and Spain, vested in the constitutional court or another supreme judicial body. 437. In addition, some countries provide other grounds for the dissolution of political parties, such as their forming paramilitary organizations; actions that go against the democratic principles enshrined in the constitution, the electoral code, the Universal Declaration of Human Rights, and the international treaties to which the state is a party; and proven subordination to or dependence on foreign organizations or governments. Along the same lines, some countries consider participation in a coup d’état or sedition as grounds for cancelling the registration of a political party. Delimitation of electoral districts 438. Decisions on the delimitation of electoral districts, or electoral geography, are made by the EMB or, as is the case in several countries, by the legislature based on technical studies prepared by the EMB or by a separate delimitation body. They are generally made during the pre-electoral period (although on occasion they are made during the post-electoral period). In general, they are inspired by the principle of one person, one vote and aim at more or less equal numbers of electors, so that each elected representative represents approximately the same number of electors. Accordingly, when the demographics shift in the different regions of a country, there is a need to make adjustments or changes to the way in which electoral district boundaries are drawn in order to preserve a more or less equal ratio of representatives to electors in each of the electoral districts. 439. The process of drawing boundaries between electoral districts can lend itself to a distortion in political representation known as gerrymandering if 150