Formula One's governing body, the FIA, has said Lando Norris' stop-go penalty at the Qatar Grand Prix was for a "serious compromise of safety" and was in line with guidance the teams received this year.
Norris was given the 10-second penalty, the most severe before a driver is disqualified from a race, for failing to slow for double-waved yellows down the main straight.
The penalty dropped Norris from second down the order, although he recovered to 10th by the finish.
On Monday, the FIA said the teams had been given guidelines on Feb. 19 of this year which said such an offence would lead to a stop-go penalty.
A double yellow flag infringement is considered a serious compromise of safety, which is why such offences carry such a severe penalty.
It added: "A double yellow flag infringement is considered a serious compromise of safety, which is why such offences carry such a severe penalty."
In terms of precedent, Kimi Raikkonen was given the same penalty for a similar incident at the 2017 Belgian Grand Prix.
The yellow flags were being waved for a piece of debris on the main straight, with the wing mirror coming loose from Alex Albon's Williams.
Race stewards opted against deploying the safety car or the Virtual Safety Car to clear the debris.
Lewis Hamilton and Carlos Sainz eventually sustained punctures while going over the debris, which eventually led to a safety car anyway.
Although that attracted criticism online, the top three race finishers all said the debris did not warrant either measure.
"It was a bit difficult to see, to be honest, what it was," race winner Max Verstappen said. "I didn't even know it was a mirror. Of course, I saw the debris, but we have done more races where there has been a bit of debris offline.
"So I guess it's a bit of a tough call to make. But then I think at one point a car drove over it. And then, of course, there are like carbon bits flying everywhere. And of course, I don't know what the reason is, of course, of the punctures, but it's maybe something to analyse. But at the moment, it's a bit difficult for me to give a clear cut opinion on that."
The explainer added four bullet points from the FIA's point of view:
"-Normal practice is for the safety car not to be deployed if there is a small amount of debris, and off the racing line
"-The extensive debris after a car hit the mirror and the punctures that occurred shortly after forced the decision on a safety car
"-A VSC would not have been a solution, as the cars remain spread-out and there is not sufficient time for a marshal to clear the debris
"-The FIA constantly reviews its methods and processes and will analyse further the specific scenario, and discuss it with the teams, in order to see whether in the future a different course of action needs to be taken."