Which of these introduced the principle that 'an apology, an offer of treatment or other redress shall not in itself amount to an admission of negligence or breach of statutory duty'?

The principle that “an apology, an offer of treatment or other redress shall not in itself amount to an admission of negligence or breach of statutory duty” is indeed established under the provisions of the 2006 Compensation Act. This legislation was designed to encourage open communication between parties involved in personal injury cases by allowing them to express sympathy, apologies, or offers of assistance without the fear that such actions would be interpreted as an admission of liability. This principle serves to foster a more amicable resolution of claims and reduces the adversarial nature of personal injury disputes.

The other options reflect legislation that, while relevant to injury claims or insurance, do not specifically contain this principle. The 1999 Tort Reform Act primarily addressed issues related to tort claims and the general framework of litigation but not specifically this aspect. The 2010 Insurance Act focused on clarifying insurers' obligations but did not include this principle. The 2015 Civil Liability Act introduced reforms affecting claims for personal injury, particularly in the context of whiplash claims, but it is not the source of this specific principle either.

Thus, the 2006 Compensation Act is the correct reference as it explicitly introduced this principle, aiming to promote a more collaborative approach to resolving disputes involving personal injuries.