Desert City Investigative & Professional Services Has Private Investigators and Process Servers with over 30+ years experience. We are officers of the court in Arizona and can effectively serve your files in Arizona and across the nation. What sets us apart from our competitors is that we licensed private investigators in Illinois and Arizona. We can serve papers, but we can also locate defendants, long lost loves, run license plates, provide tech help with computers and phones. We are a full service private detective agency that also serves the papers that you need served. With offices in Illinois and Arizona We are your one stop shop for any investigative services that you may need performed.