Question: what does cch stand for in law enforcement
[{'answer': 'Computerized Criminal History', 'provenance': [{'wikipedia_id': '34521983', 'title': 'Computerized Criminal History', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]