The people's right to be informed and their right to give their voice:
Are they defined as constitutional rights and what is the name for that
principle?
Yes. It is a duty to provide information about the activities of state agencies, local governments, and their officials - public disclosure; public display of plan ; the right to address state agencies, local governments, and their officials with memoranda and petitions - presenting proposals and objections during a planning process; exercising the supreme power of state by electing the Riigikogu; electing local councils of cities and rural municipalities . (see also EE Country and EE Planning System)
The constitutional right is a principle that the searching, getting and
the distribution of the information by the people can not be disturbed.
This right can be limited only by law (The 25th paragraph of
Constitution).
Yes. The constitutional rights are the Principle of free access to
official documents (offentlighetsprincipen) and the Principle of
citizens participation in planning. (see also SE Country and SE Planning System)