It is just so important that a white collar suspect be handcuffed and paraded in front of the cameras at the time of his arrest, isn’t it?
Theatre, pure theatre.
And yes, of course they tipped off the media to make sure they were there to record it. The Reuters report even states as much.
What would be lost, other than the aggrandisement of the State, if the British system were adopted with non-violent, non-flight risk people: could we make an appointment for you to come down to the police station to be arrested please sir?
Other than that display of the power of the State of course.