present during ....... were obliged to participate

[grigolga]

помогите с этой частью предложения.
present during the Line-up session were obliged to participate.
присутствующие на дегустации, обязаны были принимать участие???

Line-up
Plant should record the daily attendance (by name) and make a conso the end of the month. The rule was that each HoD + all PE's and SV's from all departments .

[Luvh8er]

присутствующие были вынуждены принять участие в опознании