Norwich — The City Council Public Safety Committee started work on a plan to upgrade antiquated fire radio and dispatch system, a top priority in the new fire services study, and voiced support for a controversial idea to create a fire commissioner to oversee all fire departments. The committee on Wednesday discussed the 194-page report by McGrath Consulting Group, released Feb. 16, for the first time Wednesday and started the process to obtain cost estimates for fire radios and upgrades to the dispatch system. Committee Chairman Alderman Joseph DeLucia said much of the report will be reviewed methodically rather than as “a snowball running downhill,” noting the fire communications system is an immediate need.