When a major event takes place in London, along comes the paraphernalia of ceremony to control and to broadcast.
Up go the crowd control barriers to line the streets and hold the adoring crowds at a respectful distance, and the loathing crowds at an even greater distance.
Camera crews unable to borrow overlooking office spaces to lean out of need their platforms along the route.
TV personalities need a posh box to sit in and commentate on the proceedings.
And a cluster of technology laden vans are hidden around corners to transmit digital bits and bytes to those participating vicariously from a distance.
The police will be out in force to keep an eye on proceedings, and behind its stony façade, the Royal Courts of Justice will continue dolling out the law – just use the side entrance on Wednesday.