Here are a some Police and Ministry of Interior Arm and chest Patches.
Bob

MOI, IP which are made of aluminum.

MOI, IP which are made of a magnetic metal and are heavy.

A pair of shoulder patches which are also made of a magnetic metal and are heavy.

MOI, with Police in English only. Made of aluminum
Bob

MOI, IP which are made of aluminum.

MOI, IP which are made of a magnetic metal and are heavy.

A pair of shoulder patches which are also made of a magnetic metal and are heavy.

MOI, with Police in English only. Made of aluminum