This lexicon has two purposes. First, to develop and understand social media terms and abbreviations for practical use by law enforcement personnel; Secondly, as information for the second edition of Police Technology. If you would like to add a word, phrase or abbreviation, send an email to Editor@Police-Writers.com. The focus is on Twitter abbreviations and Hash Tags. You can also follow the development of this lexicon http://www.twitter.com/policeofficer