Logic Puzzle

A lot of investment banking interviews have little logic puzzles involved in them. I really find them quite fun and thought I would pass one on that I was sent today and consumed 45min of my busy day. It is a logic puzzle with the following rules.

1. The father cannot be left alone with any daughter (without the mother present).
   
2. The mother cannot be left alone with any son (without the father present).
   
3. The thief cannot be left alone with any family member (without the cop present).
   
4. Only the father, mother, and cop can operate the boat.
   

Sounds simple? Fair enough - let’s see if you can beat the IQ game: - press the round blue button to start.