You are entitled to make a complaint about any Clinical Psychologist you are unhappy with to either the Health and Care Professions Council (HCPC) and/or the professional association for Clinical Psychologists, the British Psychological Society. (The former was set up for the protection of the public and potentially can strike someone off the register so they cannot practice again in future, if found guilty of misconduct). Many professional organisations have published codes of conduct and code of ethics. All individual practitioners should carry professional indemnity insurance for their work. You can ask to see a copy of their up to date certificate.