Bigamy is a crime. Jail is one of the punishments, but it is typically not imposed, as there is rarely enough time, jail space and money to house the perpetrator of a non-violent crime.
But, to be precise, the man can not be married to 2 women. That is a legal impossibility. He can be married to just one at any given time, and the marriage to the 2nd woman is void.
I agree with Mr. Lampert. A man cannot be legally married to two women at the same time, since the second marriage is void from the outset. Actually, you could punish him a lot more by keeping him married to both, and letting both of them know of about his other marriage. They'll do a much better job of punishing him than the justice system could ever do.
If this has happened, you could also contact the local prosecutor's office and report him.
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