The Standards Board for England: Code of conduct / OPSI, April 2007
http://www.opsi.gov.uk/si/si2007/20071159.htm
"All elected, co-opted and independent members of local authorities, including parish councils, fire, police and national park authorities, are covered by the Code. There is a new Model Code of Conduct for members which was issued by the government on 4 April 2007."

The Code of Conduct: Guide for members
PDF - http://digbig.com/4sxgm

Guidance for Police, Fire and National Park Authorities
http://digbig.com/4sxgq