OK, so Japanese police kendo is a little above our level. But still you can learn a lot just by watching. Mostly you can aspire to their Kendo. Every now and then you will be able to achieve a technique a little like what you've seen high level kenshi do. Perhaps you will see the solution to a difficult problem or bad habit in your Kendo. This is Kumamoto Police kendo. They feature Nishimura sensei among their number, one of Japan's best kenshi--national team member, All-Japan champion and subject of this documentary I've linked to previously.
This video is of their training basics: suburi, etc. Watch what they do and how they do it.