The Name just sounds silly to me, considering ham is made from pork and police are frequently sarcastically referred to as pigs.
Ham in this case refers to Ham Radio operators.
There are varied reasons given for the word Ham Operator, some again make reference to pigs and pigs behind.
What struck me as more relevant was the word amateur was pronounced hamateur during Shakespeare's time.
I still think "Tourist Ham" is a silly way of identifying Volunteer Tourist Police.
