The scores are given out for three categories. The first digit is the source reliability. The second is the sight visit. The third is a possible explanation. A score of 222 is considered a credible sighting.
Source Reliability
0 - Unknown or unreliable source
1 - Report attributed to unknown reliability
2 - Reliable source
3 - First hand experience
4 - First hand interview with the witness by a reliable source
Site Visit Rating
0 - No site visit or answer unknown
1 - Site visit by a casual person not familiar with the phenomena
2 - Site visit by a person familiar with the phenomena
3 - Site visit by a reliable investigator
4 - Site visit by a skilled analyst
Possible Explanations
0 - Date consistant with one or more natural causes
1 - Natural explanation requires slight modification of data
2 - Natural explanation requires major modification of one perameter
3 - Natural explanation requires major modification of several perameters
