Except as authorized under this paragraph, no request under pars. (a)
may be refused because the person making the request is unwilling to be identified or to state the purpose of the request. Except as authorized under this paragraph, no request under pars. (a)
may be refused because the request is received by mail, unless prepayment of a fee is required under sub. (3) (f)
. A requester may be required to show acceptable identification whenever the requested record is kept at a private residence or whenever security reasons or federal law or regulations so require.
Chs. 13-20, General Organization of the State, Except the Judiciary