The Ultimate Crossing Puzzle

The S.S. Brilliant is sinking in the North Atlantic sea, after crashing into an iceberg. You, being the logical genius (and the captain) are tasked with getting the remaining passengers to safety, on a nearby island. However, there is only one raft that can transport the remaining passengers. You are in a control tower on the island and must guide the passengers to safety by instructing them. However, the passengers are very superstitious, and have a strange set of rule that you must comply with:

• There are 2 sons, 2 daughters, a mother, a father, a fugitive and a policeman.
• No more than 2 people may be on the raft at once.
• Only the responsible adults (the mother, father and the policeman) may operate the raft.
• The father cannot be left with any of the daughters without the mother being around.
• The mother cannot be left with any of the sons without the father being around.
• The fugitive cannot stay alone with anyone without the policeman.

Time is running out. What is the fewest number of passes required to transport all passengers to safety, without leaving anyone behind or breaking any of the rules? (For clarity, someone going from the boat to the island and back is two passes; someone going to the island from the boat is only one pass.)

Assumptions:

• These rules do not apply while on the raft (i.e. you can have a daughter and father on the raft, but they cannot be left together on the island).
• Any person can be left completely alone on either the boat or the island.
• The time taken to ferry the passengers is negligible.