WAFL rules prohibit umpires from lodging a notice of investigation against an offending player for an off-the-ball incident.
Instead, it is up to the club of the player on the receiving end of the action to take the matter forward, which was a path declined by Claremont.
AFL operations manager Adrian Anderson said while this issue would not be pursued by the League, it would endeavour to work with the state football bodies to ensure a similar situation did not arise again.
"We won't so much open an investigation. We've spoken to Grant Dorrington [WAFL director of football] and it appears, with their rules, they've got an issue they can't use the video that appeared from that game," he told 3AW on Tuesday night.
"I understand they're taking steps to rectify that situation.
"It's my understanding of the current situation [that Kerr will be available round one]. We're just confirming that but it looks like there has been an alteration to the rules of the WAFL and they couldn't rely upon video that comes up after a game like that."
Anderson said the AFL was looking into why the WAFL changed the rules to disallow umpires from being able to report on off-the-ball incidents or use the unofficial video taken of the game.
He said the incident would give the AFL incentive to work with the state leagues to review their implementation of disciplinary processes.
"What it will give us is the opportunity to work with the state leagues to review all of the situations of how their rules operate to try to ensure this situation can't occur in any state league in the future," he said.
The WAFL is in a position to take further action against an offending player if he causes serious injury.
Blackwell was reported to have stated there was contact made in the incident, which was captured by television cameras on site to film Kerr's first game since round four last year, but it wasn't forceful.
Meanwhile, Kerr's hamstring - which he had operated on last season - stood up to the challenge of his first game in almost a year and he remains in line for an early season return to the top level.
Daniel Kerr is a $196,800 midfielder in the Toyota AFL Dream Team competition.
