ECSA complaint and ECSA inspector

In June 2020 I laid a complaint with ECSA. A registered engineer had signed off an agricultural drain for a cellar without seeing it and knowing it was not ideal. Not ideal meant that the cellar filled with water multiple times and water was standing to a depth of 600mm for months. The ECSA inspector contacted me. He knew my contact details. In April 2021 he called me to say he had visited the house. He knows the house is not occupied and yet he failed to contact me to arrange access. He walked around the outside and took photos of the outside. The cellar is inside. The roof structure of the house is also a problem and access to the roof is from the ceiling inside. He trespassed and yet ECSA seems to think that is acceptable behaviour. ECSA also says the engineer who signed off a critical part of the build (that then failed) without seeing it has not transgressed the code of conduct. Does ECSA protect the public or the engineer? It seems from my experience that they are loathe to protect the public from errant engineers.