Stuart Broad has expressed a note of scepticism at the official explanation of the ball tampering debacle involving the Australia team and suggested there could be more information revealed once key protagonists retire.

In recent days Cameron Bancroft, who was suspended for nine-months for his role in the Newlands scandal, and David Saker, who was the Australian bowling coach at the time, have appeared to concede that knowledge of the ploy was not limited to the three men who were suspended for their part in it.

Now Broad, talking at an event organised by soap and hand cleanser manufacturers Lifebuoy aimed at doubling the rate of handwashing in the UK, has suggested that, in his experience, a bowler is very sensitive to the condition of the ball and everyone in the team is required to "buy into" plans to look after it.

"I've obviously never bowled within the Australian bowling attack but I can talk about how, in an England Test team, if I miss the seam by four millimetres, Jimmy Anderson is on me," Broad said. "He'll be saying 'why has this ball got a mark on it here? It's because you've missed the seam! Start hitting the seam, will you'.

"Reverse swing with the red ball can be affected by so many different things. If you chase it to the boundary and throw it into the grass it can smooth the ball over and stop it reversing. If you touch the ball with wet hands it will stop it reversing. If you shine it in a way that smooths over the rough side it will stop it reversing.

"So as an England team, we are aware if we're trying to get the ball reversing every player has to buy into that or it will stop it.

"There's no doubt the Aussies would have been hoping this episode was signed sealed and delivered. It was an incredibly tough thing for those three players to go through. I can't see it still being a conversation [when the Ashes start] in November, December, but I can see it being sung in the Barmy Army stands if they're allowed.

"I have seen a couple of comments from David Warner's agent, too, and I think it will be an interesting time when he stops playing for Australia and writes a book."

Broad also expressed sympathy for Jofra Archer, who has been ruled out of the New Zealand series with a recurrence of an elbow injury. With "rest and rehab" having not worked, though, Broad suggested "more intensive" treatment may be necessary. While he stopped short of using the word 'surgery', he did suggest England - and Archer - would have to accept he can't play every game.

"I saw Jofra this morning," Broad said. "He is in decent spirits. I think it's been frustrating for him. You know, the first time I was really aware that he had a bit of an elbow issue was in South Africa. He missed a couple of games there and he tried to get fit for the Wanderers; he bowled in the morning and it hurt him too much. It's been a bit of an underlying niggle for him since.

"The rest and rehab option hasn't pulled through for him. He was obviously hopeful of coming back after having that hand surgery and resting the elbow. But it's still niggled him, so I'm sure the ECB will be thinking long and hard of what the next step is, but it's probably a little bit more intensive than rest and recoup now.

"I think Jofra can play a huge part in all three formats for England. But he won't just be able to play every game. It's unrealistic to think that any all-format player - Ben Stokes included - can and that's when, without being disrespectful to any other type of international cricket, you do have to get him right for the games you want him right for.

"I was annoyed at the time, aged 28 or 29, when the decision was almost forced on me not to play in the white-ball stuff anymore. But sat here now aged 34, I feel fresh as a daisy. I feel excited and buzzing every time I play cricket. It's quite hard to keep that when you play all three formats.

"It's still too early for Jofra to start having doubts of whether he's a three-format cricketer, but he needs to get very clear in his mind what cricket he wants to be absolutely fit and firing for.

"If I was a captain or head coach looking at Jofra Archer, I'd want him bowling my last over in the T20 World Cup and I'd want him playing [in the first Ashes Test] at Brisbane."

Lifebuoy are proud to partner with Chance to Shine, as part of their ambition to double the rate of handwashing in the UK. Stuart Broad was coaching schoolchildren at Hague Primary School, as a representative of the England Cricket team, of which Lifebuoy are also a partner.

George Dobell is a senior correspondent at ESPNcricinfo