/usr/share/dbus-1/services/org.freedesktop.Tracker1.service is in tracker 0.16.2-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [D-BUS Service]
Name=org.freedesktop.Tracker1
Exec=/usr/lib/tracker/tracker-store
|