/usr/lib/x86_64-linux-gnu/libsamba-policy.so is in samba-dev 2:4.1.6+dfsg-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libsamba-policy.so.0.0.1
/usr/lib/x86_64-linux-gnu/libsamba-policy.so.0.0.1