Quote Originally Posted by Nitrodaze View Post
The excuse that it is a sporting offence; hence the in-race punishment, sets a new precedent. And defines a new kind of infraction not defined anywhere in the regulations. If it was, they would be very quick to quote the rules in question.
The stewards did quote the rules they thought Hamilton violated in their report: https://www.autoweek.com/racing/form...-even-started/

Article 12.1.1. of the FIA International Sporting Code and Article 36.1 of the FIA Formula One Sporting Regulations. The latter quite clearly defines what is - and what isn't - allowed on the installation lap.