Question: when was dna technology first used in forensics
[{'answer': '1984', 'provenance': [{'wikipedia_id': '44290', 'title': 'DNA profiling', 'start_paragraph_id': 4, 'start_character': 702, 'end_paragraph_id': 4, 'end_character': 706, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}]