Charitable organizations and religious organizations, as well as individuals who wish to conduct polling or surveying, circulate petitions, engage in political or religious speech, or other similar conduct, are not subject to the Do Not Knock law. However, residents still have the right to post "No Trespassing" signs or signs of similar import indicating that such solicitors are unwelcome as well. If these persons refuse to leave your property, or if you feel at all threatened or doubt their authenticity, you should call the police department at 238-4422.