Hypothesis for DNA Fingerprinting?

I'm doing a project on DNA Fingerprinting and I need a hypothesis. My previous hypothesis failed and so can anyone suggest a hypothesis please?

Note : Serious answers please , unnecceesary answers will most likely be deleted.

I don't really get how I will make a hypothesis in this one. This is my project guide: http://www.sciencebuddies.org/science-fair-projects/project_ideas/BioChem_p009.shtml
Thx mate.