I have read in Rabbi Hertzel Hillel Yitzchak's book Tzel Heharim: Tzitzit that it is permissable for a chazzan to wear a tallis at night (see page 60 of that book) provided that he does not have an outer garment over his shirt. He does give some references for saying this but these (Halachah Berura Vol 1 18.3 and Tzitzit halacha pesukah 18.11) are unclear/unknown to me. can someone expand on the basis for permitting a chazzan to wear a tallis at night. Thanks
A chazzan does not wear the talis to be yotzeh the mitzvah of tzitzis. He only wears it to have an atiffa, for kavod hatzibur. This is the same reason he doesn't make a bracha on it when he puts it on.