+600+. The property of private persons was protected: the common man might impose a taboo on his land, crops, house, and garments, and these were then safe from depredation. It was true, however, in New Zealand as elsewhere, that the potency of the imposed taboo depended on the influence of him who imposed it; chiefs, as uniting in their persons civil and religious authority, were the most powerful persons in the community, and taboos ordered by them were the most effective. In Melanesia taboo is largely employed for the protection of private property--curses are pronounced against trespassers, and the authority of the tabooer is reënforced by that of the local spirit or ghost (_tindalo_);[972] here taboo has become definitely an element of civil law, in which it tends to be absorbed. +601+. _Taboos connected with other important social events._ It appears that all occurrences supposed to affect the life of the community have been, and often still are, regarded as bringing with them, or as attended by, supernatural influences (resident in mana or in spirits) that may be dangerous. Against these perils the usual precautions are taken, one of the commonest (as in cases mentioned in the preceding paragraphs) being abstinence from ordinary work; the belief, apparently, is that such work is tainted with the injurious influence with which the atmosphere is charged. +602+. Among religious ceremonies the expulsion of evil spirits was naturally attended with danger, and work was prohibited. Such was the custom in Athens at the Anthesteria and on the sixth day of the Thargelia, and in Rome at the Lemuria.[973] Among existing tribes there are numerous examples of this sort of restriction: it is found in West Africa[974] and in Indonesia (Kar Nicobar, Bali[975]); in Assam it takes the form of a taboo (_genna_) for laying to rest the ghosts of all who have died within the year[976] (an All Souls ceremony).