diff --git a/Cargo.toml b/Cargo.toml
index 66240b9..5e7d5d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -47,6 +47,7 @@ full = [
     "time-ago",
     "get-place-by-iran-national-id",
     "half-space",
+    "legal-id"
 ]
 add-ordinal-suffix = []
 commas = []
@@ -66,6 +67,7 @@ extract-card-number = []
 time-ago = ["dep:thiserror", "dep:chrono"]
 get-place-by-iran-national-id = ["dep:thiserror"]
 half-space = []
+legal-id= ["dep:thiserror"]
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/Makefile b/Makefile
index dee6f1d..ca65c42 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ fmt:
 	cargo fmt
 
 
-build: full default add-ordinal-suffix commas digits find-capital-by-province persian-chars national-id remove-ordinal-suffix url-fix verity-card-number time-ago phone-number bill number-to-words get-bank-name-by-card-number extract-card-number get-place-by-iran-national-id half-space
+build: full default add-ordinal-suffix commas digits find-capital-by-province persian-chars national-id remove-ordinal-suffix url-fix verity-card-number time-ago phone-number bill number-to-words get-bank-name-by-card-number extract-card-number get-place-by-iran-national-id half-space legal-id
 
 check: clippy lint
 
@@ -121,4 +121,9 @@ get-place-by-iran-national-id:
 half-space:
 	@ echo ""
 	cargo build --no-default-features --features=half-space
+	@ ls -sh target/debug/*.rlib
+
+legal-id:
+	@ echo ""
+	cargo build --no-default-features --features=legal-id
 	@ ls -sh target/debug/*.rlib
\ No newline at end of file
diff --git a/README.md b/README.md
index 63fe6ae..f7c1a47 100644
--- a/README.md
+++ b/README.md
@@ -24,10 +24,10 @@ Rust version of Persian Tools
 - [x] findCapitalByProvince
 - [x] getBankNameByCardNumber
 - [x] getPlaceByIranNationalId
-- [ ] halfSpace
+- [x] halfSpace
 - [ ] isArabic
 - [x] isPersian
-- [ ] legalId
+- [-] legalId
 - [x] nationalId
 - [x] numberToWords
 - [ ] numberplate
diff --git a/src/legal_id/mod.rs b/src/legal_id/mod.rs
new file mode 100644
index 0000000..f7740ac
--- /dev/null
+++ b/src/legal_id/mod.rs
@@ -0,0 +1,21 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum VerifyIranianLegalIdError {
+    #[error("invalid legal id")]
+    NotValid,
+}
+
+pub fn verifyIranianLegalId(inp: impl AsRef<str>) -> Result<(), VerifyIranianLegalIdError> {
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    // use super::*;
+
+    #[test]
+    fn test_name() {
+        assert_eq!(1, 1);
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index a009641..7a0fef7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,6 +16,7 @@
     feature = "time-ago",
     feature = "get-place-by-iran-national-id",
     feature = "half-space",
+    feature = "legal-id",
 )))]
 compile_error!("No available Cargo feature is included");
 
@@ -69,3 +70,6 @@ pub mod get_place_by_iran_national_id;
 
 #[cfg(feature = "half-space")]
 pub mod half_space;
+
+#[cfg(feature = "legal-id")]
+pub mod legal_id;