Check out the below link for video help for umpiring using real game issues to show you what is correct and wrong. Taken from the briefing given from to the National League Umpires of Australia 2009.
North Umpires Assosiuation Affiliation Form
http://www.freewebs.com/grampianhockey/NUA Affiliation Form 2007-08.doc
North Umpires Association Newsletters
http://www.freewebs.com/grampianhockey/NUN Publication 1 Jan 08.pdf
Scottish Hockey Umpires Webpages
http://www.scottish-hockey.org.uk/officiating.aspx
Umpiring Websites from Around the World
http://www.fihockey.org/vsite/vnavsite/page/directory/0,10853,1181-117486-118753-nav-list,00.html
http://www.canterbury.asn.au/Documents/Hockey_Umpiring_Signals.pdf
