Can’t speak to local practices, but:
http://www.uscourts.gov/services-forms/jury-service/juror-qualifications
... There are three groups that are exempt from federal jury service:
members of the armed forces on active duty;
members of professional fire and police departments; and
“public officers” of federal, state or local governments, who are actively engaged full-time in the performance of public duties.
Persons employed on a full-time basis in any of these categories are barred from serving on federal juries, even if they desire to do so...
"Barred" and "exempt" have different connotations, but I take your point, they have a get out of (federal) jury duty card. I would suspect any local courts honor it.
The feds also excuse "persons over age 70; persons who have, within the past two years, served on a federal jury; and persons who serve as volunteer fire fighters or members of a rescue squad or ambulance crew."
sate of Washington excludes full time students, but doesn't exclude government employees.
Maine law exempts the following individuals from jury service:State of Maine Judicial Branch: Jury Information - Exemptions, Excuses, and Deferrals
- the Governor
- judges
- physicians and dentists providing active patient care
- veterinarians with or in an active veterinary medicine practice
- sheriffs
- attorneys at law
- and members of the armed forces on active duty.
Connecticut does not exempt police, but I bet they get voir dired out, pronto!