This competition will be of interest to writers. Bear in mind the value of the Writers' and Artists' Yearbooks.
Don't waste time writing needless background that won't appear in the story, or doing research that you strongly suspect to be irrelevant. If in doubt, do the research whilst you are writing. This is a particular problem with science fiction and fantasy, but happens everywhere.
If the police arrest a mute, do they tell him he has the right to remain silent?