edwardh1, your use of Switzerland as an example is a poor (or inspired) choice in the circumstances. Their recent national accident record is not one of the best. Notwithstanding that, not all of the accidents involved Swiss nationals; the culture of the organisations behind the accident have a major effect on safety. These cultures may be organisational or professional and apply equally to individuals, operators, regulators, and governments, all who have a role to play in safety, but each with differing levels of power, and thus effect.
The standard texts are available from
Publications: year 1998 onwards