2) the statute of limitations on prosecuting bigamy is three years. {Insert wisecracks about Mormons in Washington here}. I found this in the Revised Code looking for limitations for other crimes in reference to a patron's question. I also discovered:
3) If you don't report a rape* within a year of the occurence, the rapist cannot be prosecuted. I'm assuming the point of this is to enourage people to report rapes and to cut down on frivolous "My boyfriend broke up with me, so I'll accuse him of rape and make his life hell" type of revenge ploys, but it seems harsh. I didn't check to see if other forms of assault have the same restrictions. perhaps I shall.
*statutory rape and rape of children has different rules and is exempt from the year reporting clause, as you might guess.