"police line" meaning in English

{
  "forms": [
    {
      "form": "police lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "police line (plural police lines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A line, often marked with yellow tape, demarcating a crime or accident scene and which bystanders are not supposed to cross."
      ],
      "id": "en-police_line-en-noun-n9miRmg2",
      "links": [
        [
          "crime",
          "crime scene"
        ],
        [
          "accident",
          "accident"
        ],
        [
          "bystander",
          "bystander"
        ],
        [
          "cross",
          "cross"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "24 76",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "24 76",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "topical",
          "langcode": "en",
          "name": "Law enforcement",
          "orig": "en:Law enforcement",
          "parents": [
            "Crime prevention",
            "Emergency services",
            "Law",
            "Crime",
            "Public safety",
            "Justice",
            "Criminal law",
            "Society",
            "Public administration",
            "Security",
            "All topics",
            "Government",
            "Fundamental",
            "Politics"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A line of police officers standing guard."
      ],
      "id": "en-police_line-en-noun-pc6MrU0C",
      "links": [
        [
          "police officer",
          "police officer"
        ]
      ]
    }
  ],
  "word": "police line"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Law enforcement"
  ],
  "forms": [
    {
      "form": "police lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "police line (plural police lines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A line, often marked with yellow tape, demarcating a crime or accident scene and which bystanders are not supposed to cross."
      ],
      "links": [
        [
          "crime",
          "crime scene"
        ],
        [
          "accident",
          "accident"
        ],
        [
          "bystander",
          "bystander"
        ],
        [
          "cross",
          "cross"
        ]
      ]
    },
    {
      "glosses": [
        "A line of police officers standing guard."
      ],
      "links": [
        [
          "police officer",
          "police officer"
        ]
      ]
    }
  ],
  "word": "police line"
}