[Avodah] being a policeman, fireman

[M Cohen]

RET asks  ... Should a good orthodox ma/woman avoid being a policeman,
fireman or even doctor because these professions require occasional work on
Shabbat (though mutar) and because the professions lead to many questions

I must assume that you are referring to EY. 
In chul, I don't know why you refer to 'occasional work on Shabbat' as a
policeman/fireman as mutar.

Mordechai cohen