"One of the key conditions to prosecuting an action for invasion of privacy is whether or not the person has a "reasonable expectation of privacy." The courts across the country are finding with more and more frequency that no reasonable expectation of privacy exists with patent video surveillance or with hidden surveillance if the physical space surveyed is a public and open space".
FLORIDA
Fla. Stat. ch. 934.03: All parties must consent to the recording or the disclosure of the contents of any wire, oral or electronic communication in Florida. Recording or disclosing without the consent of all parties is a felony, unless the interception is a first offense committed without any illegal purpose, and not for commercial gain, or the communication is the radio portion of a cellular conversation. Such first offenses and the interception of cellular communications are misdemeanors. State v. News-Press Pub. Co., 338 So. 2d 1313 (1976), State v. Tsavaris, 394 So. 2d 418 (1981).
Under the statute, consent is not required for the taping of a non-electronic communication uttered by a person who does not have a reasonable expectation of privacy in that communication. See definition of "oral communication," Fla. Stat. ch. 934.02.
Re: Telephone Conversations:
Federal law allows recording of phone calls and other electronic communications with the consent of at least one party to the call. A majority of the states and territories have adopted wiretapping statutes based on the federal law, although most also have extended the law to cover in-person conversations. Thirty-eight states and the District of Columbia permit individuals to record conversations to which they are a party without informing the other parties that they are doing so. These laws are referred to as "one-party consent" statutes, and as long as you are a party to the conversation, it is legal for you to record it. (Nevada also has a one-party consent statute, but the state Supreme Court has interpreted it as an all-party rule.)
Twelve states require, under most circumstances, the consent of all parties to a conversation. Those jurisdictions are California, Connecticut, Florida, Illinois, Maryland, Massachusetts, Michigan, Montana, Nevada, New Hampshire, Pennsylvania and Washington. Be aware that you will sometimes hear these referred to inaccurately as "two-party consent" laws. If there are more than two people involved in the conversation, all must consent to the taping.