diff --git a/public/hal_cas.te b/public/hal_cas.te
new file mode 100644
index 0000000..fd5d63b
--- /dev/null
+++ b/public/hal_cas.te
@@ -0,0 +1,37 @@
+# HwBinder IPC from client to server, and callbacks
+binder_call(hal_cas_client, hal_cas_server)
+binder_call(hal_cas_server, hal_cas_client)
+
+add_hwservice(hal_cas_server, hal_cas_hwservice)
+allow hal_cas_client hal_cas_hwservice:hwservice_manager find;
+allow hal_cas_server hidl_memory_hwservice:hwservice_manager find;
+
+# Permit reading device's serial number from system properties
+get_prop(hal_cas, serialno_prop)
+
+# Read files already opened under /data
+allow hal_cas system_data_file:dir { search getattr };
+allow hal_cas system_data_file:file { getattr read };
+allow hal_cas system_data_file:lnk_file r_file_perms;
+
+# Read access to pseudo filesystems
+r_dir_file(hal_cas, cgroup)
+allow hal_cas cgroup:dir { search write };
+allow hal_cas cgroup:file w_file_perms;
+
+# Allow access to ion memory allocation device
+allow hal_cas ion_device:chr_file rw_file_perms;
+allow hal_cas hal_graphics_allocator:fd use;
+
+allow hal_cas tee_device:chr_file rw_file_perms;
+
+###
+### neverallow rules
+###
+
+# hal_cas should never execute any executable without a
+# domain transition
+neverallow hal_cas { file_type fs_type }:file execute_no_trans;
+
+# do not allow privileged socket ioctl commands
+neverallowxperm hal_cas domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;