Indeed, as the ECtHR explicitly states, the existence of a pressing social need to prohibit a political party must be established on the basis of an overall examination of the circumstances in the specific individual case and must take into account specific national features (cf. ECtHR <GC>, United Communist Party of Turkey and Others v. Turkey, Judgment of 30 January 1998, no. 133/1996/752/951, § 59; ECtHR <GC>, Refah Partisi and Others v. Turkey, Judgment of 13 February 2003, no. 41340/98 et al., § 124; ECtHR, Partidul Comunistilor and Ungureanu v. Romania, Judgment of 3 February 2005, no. 46626/99, § 58; ECtHR, HADEP and Demir v. Turkey, Judgment of 14 December 2010, no. 28003/03, §§ 69 et seq.; ECtHR, Republican Party of Russia v. Russia, Judgment of 12 April 2011, no. 12976/07, § 127). Therefore, in relation to Art. 21(2) GG, it must be taken into account that the provision is, above all, based on the historical experience of the rise of the Nazi party in the Weimar Republic and efforts to prevent recurrence of such incidents by means of early intervention against totalitarian political parties. Against that background, the notion that the prohibition of a political party should only be considered when a political party has become so strong that, if events are allowed to take their course, undermining or abolition of the free democratic basic order does not merely seem possible but is in fact probable, is incompatible with such efforts. In that respect, the determination in Art. 21(2) first sentence GG of an early timing for the prohibition of a political party that does not require waiting for a specific threat to the free democratic basic order to emerge is the result of the specific historical experience of the establishment of the tyrannical and despotic rule of the National Socialists. Against this background, a pressing social need to prohibit a political party in accordance with the case-law of the ECtHR may be presumed to exist if the requirements under Art. 21(2) first sentence GG are met, namely if there are specific and weighty indications which suggest that it is at least possible that the political party’s actions directed against the free democratic basic order could be successful.