When a subsequent attaching creditor of real or personal property wishes to contest the validity of the debt or claim on which a previous attachment is founded, the court before whom the process is returnable, on which the previous attachment was made, in its discretion, may permit such subsequent attaching creditor to appear by himself or herself or counsel and defend such action. The words "attaching creditor" shall include creditors claiming to hold by trustee process personal property or funds in the hands of any person against such previous attachments.