The guide provides detailed specifications for maintaining and using the standard instruments:
Now, twenty-five years later, the lieutenant looked at her with trembling eyes. “Sergeant, we printed the manual from the PDF. But the file name says 'Edición 1999 38.pdf'—as if 38 was part of the version. The thing is… there is no Page 38 in the digital file. When we open the PDF, it jumps from 37 to 39.”