SNP was first cautioned about Alexs Salmond's possible sexual behavior 10 years ago, which appeared yesterday.
Former Westminster leader Angus Robertson in 2008, Edinburgh Airport, said their staff complained about the behavior of the then minister.
But the details were mocked and officially registered complaints were not kept.
The SNP, the Scottish government and first minister, Nicola Sturgeon, have insisted they had not been aware of sex offending Salmond before the beginning of this year.
Robertson, who lost ground last year's general election, said yesterday: "In the light of ongoing investigations, I did not comment at this stage."
The fierce revelations last night raised the clarity of the demands.
The spokeswoman for Scottish labor equality, Pauline McNeill, said: "It is urgent for the SNP to clarify if Mr Robertson, one of the oldest politicians of the SNP, accepted these concerns about Party officials and what measures the SNP adopted in light of these concerns to protect women from sexual harassment.
"The SNP has not been transparent in discussing these allegations against Alex Salmond, and party officials and Nicolas Sturgeon should immediately go to who knows what and when."
The Scottish Conservative spokesman said: "We need adequate transparency for the SNP on who knew what and what action was taken at that time."
Records revealed yesterday that the police interviewed staff at the airport last week as they expanded their investigation into an ex-SNP leader.
It is understood that informal complaints were raised by at least three women security officers regarding comments and behavior in Salmond, as he was preparing flights in 2008.
None of the women involved did not want to file a formal complaint, and the issue was resolved without formal procedures being initiated.
Instead, the senior Edinburgh airport manager called Robertson, then SNP MP for Moray, and asked him to privately deal with Salmond.
Salmonds traveled regularly to London because he was still a deputy despite being elected to Holyrood and appointed to be the first minister in the previous year.
As Westminster SNP leader Robertson had overall responsibility for all party members.
This issue continued only when the police were informed about the information at the beginning of this year when investigating individual complaints about Salmond.
We discovered in August that a secret Scottish government investigation of Salmon's behavior was carried out after two women lodged complaints in January.
One told the investigators that he had again asked to stop his progress in December 2013 Being House in Edinburgh.
The government then sent information about the complaint to the police, which initiated the investigation.
Officials initially focused on former government employees who worked with Salmond from April 2013 until November 2014. However, they have extended the investigation.
Salmonds, meanwhile, has launched a legal challenge to the complaint, which is Leslie Evans, Permanent Secretary to the Scottish Government.
He also withdrew from the SNP and raised GBP 100,000 in public appeals to cover the costs.
Last week's hearing at the Court of Session confirmed that the Bute House case was first brought to the Scottish government unofficially five years ago.
But government lawyers have argued that the 2013 probe is not "significant" when considering whether Salmond is fairly upheld.
Salmond has admitted that the sex offender probe has been discussed with Sturgeon three times before it becomes publicly available.
In response to airport allegations, his spokeswoman said: "Mr Salmond denies all recommendations for violations at any time, and suggests that everyone should be allowed to have the police run properly without informing or confidentiality.
"Alex has not interviewed the police on any question. He is pleased that his case against the Scottish government has been appealed to the Court of Session."