IN RE MATTHEW F

John E. Tucker, assistant attorney general, with whom, on the brief, were Richard Blumenthal, attorney general, and Susan T. Pearlman and Amor C. Rosario, assistant attorneys general, for the appellant (department of children and families). Rosemarie T. Weber, for the appellee (respondent father). Kimberly A. Pisinski, for the appellee (petitioner). Anne Louise Blanchard and Jillian Griswold filed a brief for Connecticut Legal Services, Inc., et al., as amici curiae.