Moomoomoo,
I completed a BAA assessment day at LHR in Jan. I start my new job at LHR in March.
The day was conducted by Hunter Roberts who seem to be a specialist Assessment Day organiser.
It was split into parts, you had a timetable with a list of where you needed to be and when.
It started with a "Welcome to BAA talkie bit and video." Then we had a Competencies Interview for 20 mins - one on one. Then "Challenging Situation" number 1 - which was roll specific. Then an hours written test. Then "CHallenging Situation Number 2"
Was all over by 2pm
Very friendly, very professionally done. Totally organised and effecient.
All the best with yuor day!!!!