How many CI5 agents in the organisation?
It focuses mostly on Bodie (codename 3-7) and Doyle (codename 4-5), but how many other CI5 field agents were there in the series, as I can't imagine there'd be so many that they'd run out of single-digit callsigns, like 18-22 or 11-17?
There are only so many different permutations that could be used with single digits without 4-5 and 3-7 (ie. 8-1 and 2-9 etc), without soon running out? I doubt an organisation would reverse the digits or use double figures, lest they be misunderstood over the radio?
In the episode 'Purging of CI5', where an unknown assassin kills off their members, at least three other CI5 men are seen to be killed.
So I wondered if anyone had seen or heard how many CI5 agents were in the show?