BBC News
By Conor Macauley
Published
image captionMid and East Antrim Council withdraw staff from inspection duties at Larne Port on 1 February
Trade unionists have denied claims they told council officials that car registrations of Larne Port staff conducting Brexit checks were recorded.
Department of Agriculture port staff were also stood down from some work.
Nipsa's Alan Law told Stormont's Agriculture Committee that he felt union concerns raised about threatening graffiti had been embellished.
Graffiti opposing the Irish Sea border had been painted in some areas of Northern Ireland, including in Larne, in the run up to the withdrawal of port staff.