Contempt - the court finds that the non-custodial parent willfully failed to obey the court order.

He was convicted of willfully failing to file federal income tax returns for the years 1967 and 1968.

On January 17, 2007, Nickolas was indicted on charges of willfully failing to file any state income tax returns for 2003, 2004 or 2005.

The law also applies to a parent or guardian who willfully fails to provide food for a child or creates a substantial risk of physical injury.

For each year a taxpayer willfully fails to timely file an income tax return, the taxpayer can be sentenced to one year in prison.

He was also convicted on three counts of willfully failing to file Federal income tax returns for the years 1994, 1995, and 1996.

If a company willfully fails to comply, the damages increase to up to $3,000 plus attorney's fees.

If it's shown that an official willfully failed to keep an individual from harm, that official could be in violation of the color of law statute.

Snipes was also charged with six counts of willfully failing to file federal income tax returns by their filing dates.

Also in 1973, a disbarred attorney named Jerome Daly lost an appeal on his conviction for willfully failing to file federal income tax returns.