diff --git a/BoardConfig.mk b/BoardConfig.mk
index a11ff36..ecac3db 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -161,6 +161,8 @@ ENABLE_VENDOR_RIL_SERVICE := true
 # Sepolicy
 include device/mediatek/sepolicy_vndr/SEPolicy.mk
 BOARD_VENDOR_SEPOLICY_DIRS += $(DEVICE_PATH)/sepolicy/vendor
+SYSTEM_EXT_PRIVATE_SEPOLICY_DIRS += $(DEVICE_PATH)/sepolicy/private
+SYSTEM_EXT_PUBLIC_SEPOLICY_DIRS += $(DEVICE_PATH)/sepolicy/public
 
 # SPL
 VENDOR_SECURITY_PATCH := 2021-10-01
diff --git a/sepolicy/private/property_context b/sepolicy/private/property_context
new file mode 100644
index 0000000..64b38dd
--- /dev/null
+++ b/sepolicy/private/property_context
@@ -0,0 +1,17 @@
+# Audio
+audio.adm.buffering.ms                                  u:object_r:system_audio_prop:s0
+audio_hal.period_multiplier                             u:object_r:system_audio_prop:s0
+
+# Camera
+demo.hole                                               u:object_r:exported_system_prop:s0
+demo.near                                               u:object_r:exported_system_prop:s0
+demo.far                                                u:object_r:exported_system_prop:s0
+demo.fb                                                 u:object_r:exported_system_prop:s0
+camera.sensor.                                          u:object_r:system_camera_prop:s0
+
+# Fingerprint
+gf.debug.dump_data                                      u:object_r:system_fingerprint_prop:s0
+gf.debug.dump_bigdata_data                              u:object_r:system_fingerprint_prop:s0
+persist.sys.fp.goodix.                                  u:object_r:system_fingerprint_prop:s0
+persist.vendor.sys.fp.                                  u:object_r:system_fingerprint_prop:s0
+persist.sys.fp.info                                     u:object_r:system_fingerprint_prop:s0
\ No newline at end of file
diff --git a/sepolicy/public/property.te b/sepolicy/public/property.te
new file mode 100644
index 0000000..b0686bd
--- /dev/null
+++ b/sepolicy/public/property.te
@@ -0,0 +1,8 @@
+# Audio
+system_public_prop(system_audio_prop)
+
+# Camera
+system_public_prop(system_camera_prop)
+
+# Fingerprint
+system_public_prop(system_fingerprint_prop)
diff --git a/sepolicy/vendor/hal_fingerprint_default.te b/sepolicy/vendor/hal_fingerprint_default.te
index 779c3ad..8a53d48 100644
--- a/sepolicy/vendor/hal_fingerprint_default.te
+++ b/sepolicy/vendor/hal_fingerprint_default.te
@@ -23,6 +23,8 @@ allow hal_fingerprint_default hal_fingerprint_default_exec:file entrypoint;
 # Allow fingerprint HAL to get and set its props
 get_prop(hal_fingerprint_default, vendor_fingerprint_prop)
 set_prop(hal_fingerprint_default, vendor_fingerprint_prop)
+get_prop(hal_fingerprint_default, system_fingerprint_prop)
+set_prop(hal_fingerprint_default, system_fingerprint_prop)
 
 # Allow fingerprint HAL to create netlink_socket
 allow hal_fingerprint_default self:netlink_socket create_socket_perms_no_ioctl;
diff --git a/sepolicy/vendor/mtk_hal_audio.te b/sepolicy/vendor/mtk_hal_audio.te
index 437bac7..5983bc1 100644
--- a/sepolicy/vendor/mtk_hal_audio.te
+++ b/sepolicy/vendor/mtk_hal_audio.te
@@ -1 +1,4 @@
+get_prop(mtk_hal_audio, system_audio_prop)
+set_prop(mtk_hal_audio, system_audio_prop)
+
 allow mtk_hal_audio persist_data_file:dir { search };
diff --git a/sepolicy/vendor/mtk_hal_camera.te b/sepolicy/vendor/mtk_hal_camera.te
index 4ffe83f..4b3d082 100644
--- a/sepolicy/vendor/mtk_hal_camera.te
+++ b/sepolicy/vendor/mtk_hal_camera.te
@@ -5,3 +5,6 @@ allow mtk_hal_camera persist_camera_data_file:file create_file_perms;
 
 allow mtk_hal_camera vendor_data_file:dir rw_dir_perms;
 allow mtk_hal_camera vendor_data_file:file create_file_perms;
+
+set_prop(mtk_hal_camera, system_camera_prop)
+get_prop(mtk_hal_camera, system_camera_prop)
diff --git a/sepolicy/vendor/property_contexts b/sepolicy/vendor/property_contexts
index 12e2f9d..80bb684 100644
--- a/sepolicy/vendor/property_contexts
+++ b/sepolicy/vendor/property_contexts
@@ -1,6 +1,4 @@
 # Audio
-audio.adm.buffering.ms                                  u:object_r:vendor_mtk_audiohal_prop:s0
-audio_hal.period_multiplier                             u:object_r:vendor_mtk_audiohal_prop:s0
 vendor.audio.chk.                    			u:object_r:vendor_mtk_audiohal_prop:s0
 vendor.audio.mic.                    			u:object_r:vendor_mtk_audiohal_prop:s0
 vendor.audio.spkcal.copy.inhal                          u:object_r:vendor_mtk_audiohal_prop:s0
@@ -11,19 +9,10 @@ vendor.debug.camera.enableMetaPending			u:object_r:vendor_mtk_camera_prop:s0
 vendor.debug.camera.enableMetaMerge			u:object_r:vendor_mtk_camera_prop:s0
 vendor.debug.tpi.                     			u:object_r:vendor_mtk_camera_prop:s0
 persist.vendor.camera.                                  u:object_r:vendor_mtk_camera_prop:s0
-demo.hole                                               u:object_r:vendor_mtk_camera_prop:s0
-demo.near                                               u:object_r:vendor_mtk_camera_prop:s0
-demo.far                                                u:object_r:vendor_mtk_camera_prop:s0
-demo.fb                                                 u:object_r:vendor_mtk_camera_prop:s0
-camera.sensor.                                          u:object_r:vendor_mtk_camera_prop:s0
 persist.camera.module.                                  u:object_r:vendor_mtk_camera_prop:s0
 
 # Fingerprint
-gf.debug.dump_data                                      u:object_r:vendor_fingerprint_prop:s0
-gf.debug.dump_bigdata_data                              u:object_r:vendor_fingerprint_prop:s0
-persist.sys.fp.goodix.                                  u:object_r:vendor_fingerprint_prop:s0
 persist.vendor.sys.fp.                                  u:object_r:vendor_fingerprint_prop:s0
-persist.sys.fp.info                                     u:object_r:vendor_fingerprint_prop:s0
 vendor.fps_hal.                                         u:object_r:vendor_fingerprint_prop:s0
 
 # IR