In general pretrial procedure includes all interrogatories, depositions, subpoenas, admissions, requests for entrance.
Sometimes during pretrial procedure, discovery requests.
Pretrial procedure is one reason why lawyers and their clients sign retainer agreements. A lawyer’s time, measured in hours and graduated in small fractions of an hour for billing purposes, is by far the largest single expense of going to trial, and a good portion of any case that goes to trial will be spent in pretrial procedures.
Pretrial procedure includes mapping a strategy for the defendant.
See Discovery.