Conversation so far:
What songs did Carl Switzer produce?
Whats so important about Carl Switzer's personal life?
Who is Carl Switzer's family members?
Carl Switzer was born in Paris, Illinois, the third and last son of four children born to Gladys C. Shanks and George Frederick Switzer. The oldest brother died in 1922.
Who is Collingwood and their relationship to Carl Switzer?
In early 1954, Carl Switzer went on a blind date with Diantha Collingwood, heiress of grain elevator empire Collingwood Grain.
Is there anything else important about Carl Switzer's personal life?
Carl Switzer was arrested.
Where did the arrest happen for Carl Switzer?
Carl Switzer was arrested in Sequoia National Forest for cutting down 15 pine trees and sentenced to one year's probation

Question: in what year was he arrested?
Self-contained rewrite: What year was Carl Switzer arrested?