diff --git a/datasets/the_pile/README.md b/datasets/the_pile/README.md
index d630e4d05c1..d8cb777d04c 100644
--- a/datasets/the_pile/README.md
+++ b/datasets/the_pile/README.md
@@ -67,7 +67,7 @@ datasets combined together.
 
 ### Languages
 
-[More Information Needed]
+This dataset is in English (`EN`).
 
 ## Dataset Structure
 
@@ -81,6 +81,18 @@ datasets combined together.
 }
 ```
 
+#### free_law
+```
+{
+  'meta':  {
+    'case_jurisdiction': 'scotus.tar.gz',
+    'case_ID': '110921.json',
+    'date_created': '2010-04-28T17:12:49Z'
+  },
+  'text': '\n461 U.S. 238 (1983)\nOLIM ET AL.\nv.\nWAKINEKONA\nNo. 81-1581.\nSupreme Court of United States.\nArgued...'
+}
+```
+
 #### pubmed_central
 ```
 {
@@ -93,9 +105,22 @@ datasets combined together.
 
 #### all
 
+- `text` (str): Text.
+- `meta` (dict): Metadata of the data instance, with keys:
+  - pile_set_name: Name of the subset.
+
+#### free_law
+
+- `text` (str): Text.
 - `meta` (dict): Metadata of the data instance, with keys:
-   - pile_set_name: Name of the subset.
+   - case_ID
+   - case_jurisdiction
+   - date_created
+
+#### pubmed_central
+
 - `text` (str): Text.
+- `id` (str): ID of the data instance.
 
 ### Data Splits
 
diff --git a/datasets/the_pile/the_pile.py b/datasets/the_pile/the_pile.py
index 839e375694e..978a2e00c5e 100644
--- a/datasets/the_pile/the_pile.py
+++ b/datasets/the_pile/the_pile.py
@@ -39,6 +39,7 @@
 
 _LICENSES = {
     "all": "MIT License",
+    "free_law": "Unknown",
     "pubmed_central": "MIT License",
 }
 
@@ -48,6 +49,7 @@
         "validation": ["https://the-eye.eu/public/AI/pile/val.jsonl.zst"],
         "test": ["https://the-eye.eu/public/AI/pile/test.jsonl.zst"],
     },
+    "free_law": "https://the-eye.eu/public/AI/pile_preliminary_components/FreeLaw_Opinions.jsonl.zst",
     "pubmed_central": "https://the-eye.eu/public/AI/pile_preliminary_components/PMC_extracts.tar.gz",
 }
 
@@ -58,10 +60,20 @@
             "meta": {"pile_set_name": datasets.Value("string")},
         }
     ),
+    "free_law": datasets.Features(
+        {
+            "text": datasets.Value("string"),
+            "meta": {
+                "case_ID": datasets.Value("string"),
+                "case_jurisdiction": datasets.Value("string"),
+                "date_created": datasets.Value("string"),
+            },
+        }
+    ),
     "pubmed_central": datasets.Features(
         {
-            "id": datasets.Value("string"),
             "text": datasets.Value("string"),
+            "id": datasets.Value("string"),
         }
     ),
 }
@@ -100,7 +112,7 @@ def _info(self):
             # This is the description that will appear on the datasets page.
             description=_DESCRIPTION,
             # This defines the different columns of the dataset and their types
-            features=_FEATURES[self.config.name],
+            features=_FEATURES.get(self.config.name),
             # If there's a common (input, target) tuple from the features,
             # specify them here. They'll be used if as_supervised=True in
             # builder.as_dataset.
@@ -108,7 +120,7 @@ def _info(self):
             # Homepage of the dataset for documentation
             homepage=_HOMEPAGE,
             # License for the dataset if available
-            license=_LICENSES[self.config.name],
+            license=_LICENSES.get(self.config.name, "Multiple: see each subset license"),
             # Citation for the dataset
             citation=_CITATION,
         )
@@ -133,7 +145,12 @@ def _split_generators(self, dl_manager):
                 datasets.SplitGenerator(
                     name=datasets.Split.TRAIN,
                     gen_kwargs={
-                        "files": {subset: dl_manager.iter_archive(archive[subset]) for subset in self.config.subsets},
+                        "files": {
+                            subset: dl_manager.iter_archive(archive[subset])
+                            if ".tar" in data_urls[subset]
+                            else archive[subset]
+                            for subset in self.config.subsets
+                        },
                     },
                 ),
             ]
@@ -152,7 +169,15 @@ def _generate_examples(self, files):
                         key += 1
         else:
             for subset in files:
-                if subset == "pubmed_central":
+                if subset == "free_law":
+                    import zstandard as zstd
+
+                    with zstd.open(open(files[subset], "rb"), "rt", encoding="utf-8") as f:
+                        for row in f:
+                            data = json.loads(row)
+                            yield key, data
+                            key += 1
+                elif subset == "pubmed_central":
                     for path, file in files[subset]:
                         id_ = path.split("/")[-1].split(".")[0]
                         text = file.read().decode("utf-8")