Billy Grogan is the Chief of Police for the Dunwoody Police Department in Georgia. Chief Grogan was hired on December 17, 2008, after serving 28 years with the Marietta, Georgia, Police Department, to start a brand new department. On April 1, 2009, the Dunwoody Police Department began operations with 40 sworn officers and eight civilians providing police services to the 40,000+ residents of the City of Dunwoody. The entire process took about 90 days. Chief Grogan embraced the use of social media from day one of operations. The Dunwoody Police Department began using Twitter the first day and has added Facebook, YouTube, and a Chief's Blog to their arsenal since then as effective tools to market their department and engage their community. Chief Grogan has participated in a number of social media focus groups and lectured on the subject as well. Follow Chief Grogan on Twitter @ChiefGrogan.