The North American Science Institute (NASI) Report, Towards a Resolution of the Bigfoot Phenomenon, prepared by Mr. Jeff Glickman a forensic examiner, was released in June, 1998. The main report findings applicable to the Patterson/Gimlin may be summarized as follows:

• Measurements of the creature: Height: 7-feet, 3.5-inches; Waist: 81.3-inches; Chest: 83-inches; Weight: 1,957 pounds; Length of arms: 43-inches; Length of legs: 40-inches.
• The length of the creature's arms is virtually beyond human standards, possibly occurring in one out of 52.5 million people.
• The length of the creature's legs is unusual by human standards, possibly occurring in one out of 1,000 people.
• Nothing was found indicating the creature was a man in a costume (i.e., no seam or interfaces).
• Hand movement indicates flexible hands. This condition implies that the arm would have to support flexion in the hands. An artificial arm with hand movement ability was probably beyond the technology available in 1967.
• The Russian finding on the similarity between the foot casts and the creature's foot was confirmed.
• Preliminary findings indicate that a human being could not duplicate the forward motion part of the creature’s walking pattern.
• Rippling of the creature's flesh or fat on its right side was observed indicating that a costume is highly improbable.
• The creature's feet undergo flexion like a real foot. This finding eliminates the possibility of fabricated solid foot apparatus. It also implies that the leg would have to support flexion in the foot. An artificial leg with foot movement ability was probably beyond the technology available in 1967.
• The appearance and sophistication of the creature's musculature are beyond costumes used in the entertainment industry.
• Non-uniformity in hair texture, length, and coloration is inconsistent with sophisticated costumes used in the entertainment industry.

Mr. Glickman closes his scientific findings with the following statement: "Despite three years of rigorous examination by the author, the Patterson-Gimlin film cannot be demonstrated to be a forgery at this time."

Glickman's estimates of the creature’s height and weight caused a lot of controversy. Dr. Grover Krantz has since established that the creature’s standing height (fully erect) did not exceed 6-feet, 6-inches. Another scientist has established that the creature’s weight was 820 pounds. These findings call into question other physical measurements (chest, waist, arms, legs) established by Glickman.