B737 Undifferentiated or Other Model
Air Traffic Control Fully Certified
Deviation / Discrepancy - Procedural Security; Ground Event / Encounter Person / Animal / Bird
General None Reported / Taken
Human Factors
A B737 was cleared to land at dusk. The runway was scanned; lights were on. Upon landing and roll out; the B737 was instructed to turn left at Golf; cross Runway 7L; and taxi to parking. The B737 then reported an animal on Runway 7R; at Taxiway Echo. The B737 then reported it was a two legged animal; a person. The runway was scanned with binoculars; and a person was observed in the grass between runways.  Airport Safety was called; all surfaces were then closed temporarily. Two aircraft were held on the ground; one aircraft made 'S' turns prior to landing. Airport Safety apprehended the individual after crossing both runways; and two taxiways. The ASDE/AMASS did not alert. The person could only be seen through binoculars. I did not observe the incident until alerted by the Local/Ground Controller. The pilot from the B737 called; and stated that he was not doing any paperwork; although he understood the fact that we had to. The closest proximity was about 1;000 FT.
Tower Controller was advised by a landing aircraft that a pedestrian was on the runway; the pedestrian not visible from the Tower without the use of binoculars.