The Superindendents of division will always in future, during Sessions, send into this office a list of the names and numbers of the men who are obliged to attend the Sessions the follow day, and a Serjeant will always take care to be sufficiently early at the Session-house, and each man will report to him his arrival and the nature of his business; the Serjeant will then endeavour to ascertain as nearly as possible how long each man is likely to be detained, and will make a note of the hour at which the business of each is finished, and will then order him to return to his duty.
In the evening the Serjeant will send to the Superintendent of each division, in writing, the name of each man of that division who attended, and the hour at which he ought to have returned to his duty.
Source: Metropolitan Police. Instructions Orders &c. &c. 1836. London: W. Clowes & Sons.
[I'm on break. Regular blogging will resume in February.]