Rule 2: Expect the unexpected

2a. A detective never knows where his next case is coming from.

2b. Any time of the day or night, at home, in the park, out shopping or in the bath – a new case can appear out of nowhere. But if you keep yours eyes open at all times, it might be a puzzle you have already solved.

Rule 1: Be invisible
Rule 2: Expect the unexpected
Rule 3: Details matter
Rule 4: Body language
Rule 5: Stay calm
Rule 6: Undercover work
Rule 7: It's still a job
Glossary
About Bob Bernstein