AMANDA Abbington has been quizzed for a second time by BBC bosses about crude remarks allegedly made by Giovanni Pernice.
The news emerged as Strictly execs recruited 15 new staff to monitor rehearsals.
Sherlock star Amanda, 50, was questioned via video-call last week by two ex-Met detectives probing her allegations about her former pro partner Giovanni, 33.
It is believed they discussed “new evidence” as well as claims of sexual comments during rehearsals.
Those claims, first reported by The Sun on Sunday last month, are vehemently denied by Giovanni.
Last night a source close to the inquiry said: “The BBC is taking this extremely seriously.”
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Bosses had been expected to announce the findings a week ago, but it is thought it was delayed by the Huw Edwards scandal.
The source added: “Giovanni maintains he’s done nothing wrong, and Amanda insists everything she has told the BBC is true.
“So whatever decision the BBC comes to, it is unlikely to be the end of the matter.”
Meanwhile “training room researchers” will now sit in on rehearsals for eight hours a day across four days a week throughout the series.
A source said: “It will also be protocol for the researchers to move between different training rooms so they don’t become too pally with the professional dancers and celebrities.”
A BBC spokeswoman said: “Our processes are kept under constant review.
“We will not be commenting on individuals.”