(a) A person to whom a lawful oath or affirmation has been administered commits the offense of perjury when, in a judicial proceeding, he knowingly and willfully makes a false statement material to the issue or point in question.

(b) A person convicted of the offense of perjury shall be punished by a fine of not more than $1,000.00 or by imprisonment for not less than one nor more than ten years, or both. A person convicted of the offense of perjury that was a cause of another's being imprisoned shall be sentenced to a term not to exceed the sentence provided for the crime for which the other person was convicted. A person convicted of the offense of perjury that was a cause of another's being punished by death shall be punished by life imprisonment.