There are certain activities that you should be aware, might raise a suspicion by the Trustee and Court. If you have engaged in any of these activities in the recent past (within one year), your case might be dismissed and you might be prosecuted for fraud. These activities include but are not limited to: lying about your income or monthly bills on a credit application; concealing property or money by hiding it or giving it away at below market value (or for free); making large purchases right before filing bankruptcy when you knew you would be filing.
Keep in mind that you are signing your bankruptcy papers under the penalty of perjury, testifying that everything in those papers is true. If you intentionally mislead the court, hide assets or are in any way untruthful and fully disclose your financial affairs your case could be dismissed and you could be prosecuted for fraud.