I’d like to ask about the meaning of “need not” in the following context:
Consequently the institution of Ombudsman and its supporting institution, the Centre, both rest on executive Decrees which may give rise to serious concerns in terms of the independence of the body. The need to ‘anchor’ the institution of Ombudsman in the Constitution of XXX has been pointed out by the Venice Commission of the Council of Europe (Venice Commission). It has been recommended that the constitutional text need not contain detailed provisions of the Ombudsman institution and be limited to granting the entity a constitutional status.
Does “need not” mean that (according to the recommendation) it is not necessary for the constitutional text to contain detailed provisions, or does it mean that it is obligatory for the constitutional text not to contain such provisions?