How come in some cases it is necessary to PROVE the truth whereas in others someone's word is enough for it.
Besides legal ones but even ones where there's a "threat" of telling off, sanction, being excluded from school or from work for instance...
In some cases, a person may say something about someone and they believe them that's it. But in others, especially legal ones, there needs to be very special interrogation and investigation methods, gathering of evidence, witnesses etc. Why is someone's word merely enough in some instances and not at all enough in others, what is the truth (if no mystery) behind it all.
And is it all entirely normal, natural and logical and we don't have to fear stuff like accusations of stupidity, ignorance and people angrily calling us out for it or even calling us names that, obviously if WRONGLY accused is something that isn't allowed but if correctly even angrily called out upon, that IS the right way to go etc, and should general public really be aware and concerned about it all let alone too much?
Thanks.
P.S. Even if some people believe someone's word IS enough, if I or others wanted further proof and confirmation without immediate disbelief like that, is that alright? Even if the matter generally doesn't require such proof but for someone its more convenient.