I think in criminal is different that civil administrative.....estopeel seems to be for criminal....Im not sure....here is something to read on it....
http://oldsite.mobar.org/e4cace40-4d6b-4acd-a237-127ee910688c.aspx
Printed copy · Anthology Volume 9, page 956Printed copy from The Tender For Law Anthology, Volume 9, page 956 (printed 13 June 2014). Added by this site; not part of the Facebook export.