Question: when did we start using dna to solve crimes
[{'answer': 'in 1984', 'provenance': [{'wikipedia_id': '44290', 'title': 'DNA profiling', 'start_paragraph_id': 88, 'start_character': 639, 'end_paragraph_id': 88, 'end_character': 646, 'bleu_score': 1.0, 'section': 'Section::::DNA evidence in criminal trials.:Partial matches.\n'}]}]