Hecathe was certainly doing a good job but it was all just for show.
After he was done interviewing the suspects, he would keep his file aside and would threaten them and intimidate them to change their answers and it seemed as if Hecathe was pretty good at this job. Almost all of them were easily threatened by Hecathe and if someone was suspicious or refused to agree to the man, Hecathe would call the mutants and use a different method of threatening.
The mutants were much more effective than him and simply seeing a mutant ready to chomp down their heads would get everyone and anyone to agree to Hecathe.
They would shake and shiver in fear as Hecathe spoke and in the end, they would nod their heads as they agreed.
Although it looked as if Hecathe had done a good job in noting down all their answers, there was one simple thing that he had done and it was something that he was not supposed to do.