Messages from women who made complaints about Alex Salmond must remain private, the SNP’s chief operating officer has said.

In her first public statement on the issue, Sue Ruddick said that the messages – which date from prior to Mr Salmond’s trial last year – include confirmation she had “reported an act of physical aggression by Mr Salmond” to the police.

Police Scotland said this was investigated, but there was “insufficient corroborative evidence to charge”.

She released a statement as SNP chief executive Peter Murrell gave evidence to a Holyrood committee examining the Scottish Government’s handling of harassment complaints.

Last week, the committee reviewed messages between women which it had received from the Crown Office before unanimously agreeing not to publish them.

In an unprecedented move, the committee had asked for documents detailing text or WhatsApp communications between Ms Ruddick and Scottish Government ministers, civil servants or special advisers from between August 2018 and January 2019 which might be relevant to its inquiry.

Committee convener Linda Fabiani said these message chains represented “safe spaces for confidential support”.

On Monday, Ms Ruddick said she was concerned the committee would seek the production of further messages.

She accused the committee of allowing itself to be led by people close to Mr Salmond who were seeking to “bolster his reputation” through false allegations.

The messages confirmed there was no conspiracy

She said: “It is becoming increasingly clear that the committee is determined to ignore complainers privacy rights and refer to, act upon and make public – whether in writing or through oral reference in a public session – private, confidential communications, despite having no lawful power to do so.

“Private communications between myself and Mr Murrell are in no way relevant to this committee’s remit.

“I am not a government employee and had no role in the complaints process of the Scottish Government.

“The messages the committee saw last week confirm I reported to Police Scotland an act of physical aggression by Mr Salmond.

“The messages confirmed there was no conspiracy.

“Having read those messages, the committee stated its desire to avoid further distress to complainers, yet just a few days later, considers it proportionate to act on my private communications, against my express wishes, when they have been unlawfully obtained and produced.”

Mr Salmond was acquitted of 13 charges including sexual assault, attempted rape and indecent assault following a trial at the High Court in Edinburgh last year.

Ms Ruddick continued: “Last week it appeared, briefly, that the complainers’ rights had finally been taken into account; yet within minutes press reporting suggested this conclusion was wholly unfounded.

“It would be nothing short of astonishing if, as media reports suggest, the committee intends to discuss or seek production of further messages, despite the clear and obvious breach of my privacy rights, notwithstanding the further distress that would involve.”

Ms Ruddick said her privacy had been breached repeatedly through “selective leaks” over the past several months.

She continued: “These are private and personal communications which should not need to be in the public domain to prove a theory false or for complainers to be believed.

“Publication and discussion of private messages relating to a police complaint are outwith the committee’s remit, and offering support to a friend and complainer is not a conspiracy.

“It is, however, a complete invasion of my privacy and has already led to further distress to the other women involved in complaints against Mr Salmond, and those we turned to for support.

“In my case, this included Peter Murrell.”

She added: “The bullying and intimidation of complainers through use of their private and personal communications must end now.

“It is incredibly disappointing that complainers’ personal experiences of Mr Salmond are being ignored, and that this committee has allowed itself to be led by selective quoting, leaks and false allegations, all made in an attempt by Mr Salmond and those around him to bolster his reputation.”

A Police Scotland spokeswoman said: “Police Scotland received a report of common assault which was thoroughly investigated.

“There was insufficient corroborative evidence to charge, however, the circumstances were included in our report to the Crown Office and Procurator Fiscal Service.”