Adrienne McGlinchey has emphatically denied that she ever had a key to the Sinn Féin office.
Brian Murphy BL, for Det.-Gda Noel McMahon put it to her that according to a collators report in Letterkenny Garda station in October 1989 (before she knew Mcmahon) she was seen using a key to enter the Sinn Féin office.
Ms McGlinchey said she never ever in her life had a key to the Sinn Féin office.
Earlier, Mr Murphy put it to Ms McGlinchey that her allegations against Garda McMahon were 'absolute fantasy'.
He said a number of her claims do not appear in her statements to the Carty inquiry and that she made them up before she came into the Tribunal.
The barrister said it was like whatever possible mayhem she could cause for Noel McMahon she would do it.
But Ms McGlinchey stood over her claims that McMahon told her to feed false information to Det.-Gda Danny Kelly and Supt Kevin Lennon, and that he got her to be seen coming from a known IRA house in Buncrana, to drop a bag of 200 bullets in front of Det. Kelly and told her to get arrested on a number of occasions.
Mr Murphy suggested to her that she constructed the story that McMahon told her that her fingerprints were all over the bullets and so he was able to blackmail her into doing more serious things.
Ms McGlinchey said 'it happened, we did it and nothing is going to change it.'