The ex-director also alleged that Fayed ‘bugged’ phones and offices ‘to set everyone against each other’.
A former Harrods director told Sky News he does not see how security at the department store “wouldn’t have known” about Mohamed al Fayed’s behaviour towards women.
Five women have alleged they were raped by Fayed, who died last year at the age of 94, with several others alleging sexual misconduct.
A legal team representing alleged victims confirmed on Saturday morning they have “had over 150 new inquiries” since the airing of a BBC documentary on Fayed.
The Harrods’ ex-director, who reported directly to Fayed, said: “There was security everywhere, all the phones and offices were bugged, with cameras everywhere.
“I just put it down to paranoia, wanting to know he was getting his pound of flesh from us. The nature of the man was to set everyone against each other, to set directors against each other.
“Whether Fayed’s own offices or stuff had surveillance, I wouldn’t know. But to get into his suite of offices you had to have an appointment, PAs had to arrange it, it was very secure.”
He added: “The only thing I was aware of was that someone said he had lots of PAs and they were all blondes. I thought that he just wanted to surround himself with pretty women.”
The former director, who spoke to Sky News on the condition of anonymity, said the culture at Harrods was toxic.
“It was very much keep your head down, no one helped each other. It wasn’t a team as you knew Fayed was trying to catch everyone out.
“He was always trying to make fun of people in front of others, which he thought was very funny.”
Tom Bower, who wrote an unauthorised biography of Fayed in 1998, told Sky News that he was a “gangster, a monster and also a major crook”.
He alleged that he used “intimidation not only over women but over witnesses”.
“Harrods was his hunting ground but wherever he was, was a hunting ground for him.”
Harrods said in a statement on Thursday it was “utterly appalled” by the allegations of abuse and apologised to Fayed’s alleged victims.
The department store has also set up a page on its website inviting former employees to come forward if they have allegations.
Meanwhile, Education Secretary Bridget Phillipson has defended Sir Keir Starmer after it emerged the Crown Prosecution Service (CPS) declined to bring charges against Fayed while the prime minister was director of public prosecutions.
The CPS considered bringing charges against the former Harrods chairman in 2009 and 2015 but concluded there was not “a realistic prospect of a conviction”.
The minister told Sky News that tackling violence against women was a “personal priority” while Sir Keir was head of the CPS as director of public prosecutions between 2008 and 2013.
“I don’t know the details of what happened in 2009, there sometimes can be issues with the evidence that’s presented by the police, whether that can lead to a conviction,” Ms Phillipson said.
“The first time that I ever knew who Keir Starmer was when I saw him on television as director of public prosecutions, talking about the personal priority that he attached to tackling violence against women and girls, so he’s got a personal commitment to it.
“He turned the CPS around while he was leading it to focus on that. But, clearly, if there have been issues that should be considered, that should happen.”