[en] The experimental data on π^- - meson multiple production in pp interactions at √s ≤ 30 GeV do not contain indications of the existence of some correlations among the π^- - mesons, except correlations connected with momentum conservation and interference ones. Multiplicity distributions inside rapidity intervals, forward-backward correlations, two-particle rapidity and transverse-momentum correlations do not contradict independent π^- meson production. Any restrictions on their multiplicity distributions do not follow from independent particle production. (author)