I applied online. The process took 1 day. I interviewed at Horsemen Investigations (Los Angeles, CA) in June 2016
Interview
Met with the hiring manager and he made the decision on the same day. He was fair and even handed. He likes accountability. He is an ex-marine. You will be required to take a drug test. Some employees have multiple interviews, but I did not. Surveillance investigators work full shifts inside their car, and it bakes in there. Know this if you are applying.
I applied through other source. I interviewed at Horsemen Investigations (Huntington Beach, CA) in Jan 2009
Interview
Called the company and submitted my resume. Was subsequently given an oral interview at which point I was later offered employment. Professionalism is a must during this process.