If you know of a particular preacher who made a representation of a need for a contribution of money for a particular purpose benefitting himself or a member of his family, money was collected and then the money was not used for the particular purpose and it now seems that rhe money may have been used for some other pupose, then possibly the preacher may have "defrauded" members of his congregation.One of the oldest and most common instances of fraud results where someone in a position of trust takes advantage of people who trust him or her. I suggest that the directors of the church have a meeting to discuss the conduct of your preacher and that possibly an attorney who practices general civil law be consulted about the situation.