Looting in Japan would be bizarre, which made me doubt your claim. A quick check found that the photo was taken in Hong Kong, not Japan. China decided to impose harsh anti-freedom laws on Hong Kong, and then spray anyone who disagreed with blue dye to later track them down.
Your question is should we have Chinese level anti-freedom operations? I say no.
Fact check: Hong Kong, not Japan, sprayed “looters and rioters” with blue dye
A post on social media makes the claim that in Japan “looters and rioters” are sprayed with an indelible blue dye so they can be later identified by law enforcement. While the photograph that accompanies some of the posts is authentic, it was taken in Hong Kong not Japan.