怎么回事？
邹某现场被公安机关挡获。[{'character': '邹', 'pinyin': 'zou1', 'highest pitch': 11.19, 'lowest pitch': 10.92, 'duration': 0.3, 'prosody hierarchy': 'null'}, {'character': '某', 'pinyin': 'mou3', 'highest pitch': 13.82, 'lowest pitch': 5.97, 'duration': 0.25, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.08}, {'character': '现', 'pinyin': 'xian4', 'highest pitch': 11.12, 'lowest pitch': 9.46, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '场', 'pinyin': 'chang3', 'highest pitch': 9.46, 'lowest pitch': 5.4, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '被', 'pinyin': 'bei4', 'highest pitch': 8.09, 'lowest pitch': 6.0, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '公', 'pinyin': 'gong1', 'highest pitch': 8.19, 'lowest pitch': 6.63, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '安', 'pinyin': 'an1', 'highest pitch': 8.6, 'lowest pitch': 8.19, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '机', 'pinyin': 'ji1', 'highest pitch': 8.88, 'lowest pitch': 8.13, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '关', 'pinyin': 'guan1', 'highest pitch': 9.37, 'lowest pitch': 8.13, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '挡', 'pinyin': 'dang3', 'highest pitch': 9.0, 'lowest pitch': 5.1, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '获', 'pinyin': 'huo4', 'highest pitch': 9.27, 'lowest pitch': 5.88, 'duration': 0.28, 'prosody hierarchy': '#4'}]