Plagiarism: Preventing or Punishing?

I stumbled across a great set of presentations from Douglas Johnson who serves as the Director of Media and Technology for Mankato Public Schools in Minnesota.

Of particular interest is a presentation titled "The Fence or the Ambulance: Are You Punishing or Preventing Plagiarism in Your School?" When you view the handout he has posted online you will see Doug's Qualities of LPP (Low Probability of Plagiarism) guidelines.
Here is the list:

1. LPP projects have clarity of purpose and expectations.
2. LPP research projects give students choices.
3. LPP projects are relevant to the student's life.
4. LPP projects ask students to write in a narrative rather than an expository style.
5. LPP projects stress higher level thinking skills and creativity.
6. LPP projects answer real questions (which students would ask).
7. LPP projects involve a variety of information finding activities.
8. LPP projects tend to be hands-on.
9. LPP projects use technology to spur creativity.
10. LPP projects use formats that use multiple senses.
11. LPP projects can be complex, but are broken into multiple steps.
12. LPP projects are often collaborative and produce results that are better than individual work.
13. LPP projects have results that are shared with people who care and respond.
14. LPP projects are authentically assessed.
15. LPP projects allow the learner to reflect, revisit, revise, and improve their final projects.
16. LPP projects are encouraged by adults who believe that given enough time, resources, and motivation, all students are capable of original work.

Each of these points is accompanied by a paragraph which gives context and strategies.

The presentation handout then goes on to present grading rubrics and assignment instructions which would be delivered to students.