An angler fishing in Lake Taupo was found by a Department of Conservation (DOC) officer to have an undersized trout. He was questioned by the officer. The angler felt the questioning went too far, and interfered with his privacy. He complained to me. His complaint raised issues under principles 1, 3 and 4. I formed the view that there was no breach of principles 1 and 4 and, although there was a breach of principle 3, harm from that breach was not established.