No one is required by law to BE a cop. Any cop who assists in the murder of Terri Schiavo is saying that his next paycheck is of greater value than Terri's life. What's funny is that you describe the cops in the precise terms that DEFINE a "Nazi"--blindly obeying orders--and then say it's inappropriate to call them Nazis.
Police officers, by command of their of their office, have to follow the orders of their superiors. If they feel they are acting against their conscience, then they should quit. But, it doesn't appear that any feel that way. They are merely following the judicial order of a duly constituted court, noywithstanding, that you and I feel that the order is wrong.
God Bless
Never give up! Never give up! Never! Never! Never! Churchill