British Touring Car boss Alan Gow is hoping the penalties being handed out will improve driving standards in the series.
After an incident-filled outing at Oulton Park earlier this month, the drivers were briefed on standards prior to last weekend's Croft races. But race three was also dramatic, and included two safety car periods.
Gow said: "For some reason Oulton produced too many incidents and robust manoeuvres and I told them it was unacceptable.
"It sometimes happens, for some reason. If you remember the race meeting before [at Thruxton] it was the exact opposite.
"I think the frequency with which we are handing out penalties this year is increasingly concentrating their minds."
At Croft, several more penalties for clashes in race three at Oulton Park were handed out.
Dave Newsham received two penalty points on his licence and an official reprimand for an incident involving Daniel Welch. Rob Collard was similarly punished for an accident involving Andrew Jordan, and also received a verbal warning for a separate altercation with Mat Jackson. Will Bratt and Adam Morgan were also given verbal warnings for an incident between them.
From the Croft races themselves, Ollie Jackson received two penalty points on his competition licence and an official reprimand following an incident in race one involving Tony Gilham. Jackson was then handed the same penalty again after race three for a clash with Chris James.