I'm fucking livid but there's a back story with her so I may be getting irate too quickly.
YES I will speak to a teacher about the 'truth' but there's my 7 year old son doesn't have the capacity to 'think up' this ultimatum.
To DS - "Did you do [naughty thing]? Admit it now and you will miss 5 minutes off your play. I'm going to ask Freddie if you did [naughty thing] and if he says you did you will go on the thunder bolt"
Thunderbolt being the worst thing ever for 7 year old, meaning going to the head teacher and your parents are called. Thankfully Freddie said my son never did the thing.
But this TA seemed determined to land my son in it anyway.