How do deputies get assigned to patrol regions?

Question

In Los Angeles county, there are 3 different patrol regions. How do Sheriff departments determine where a deputy will be assigned? Is it a random selection, or do the deputies have any kind of choice?

Answer 1

Charles has it!

Answer 2

Seniority, when there are openings new guys get shuffled around. There will be a shift bid that is determined by seniority, usually once a year.