Shifty part 1

What „function“ did the pedophile have in the first part of the series or otherwise what did the pedophile say on the hidden malfunctioning recording? I don‘t understand why Curtis took him in the documentary. I‘ve seen some of Curtis‘ earlier documentaries and know that they sometimes feel eclectic. My assumption is that Curtis wants to portray a certain feeling of the year or period described. Yet I don‘t know what the pedophile purports to the general social climate then.