Fast Response, I think not!

I was really impressed (not) by Devon and Cornwall Police last week. Glynis (5'1") observed a thief (5'8") open the back gate of the house over the road and go behind the house to steal the motorbike, which was being renovated after being stolen and trashed 2 months ago. She shouted across the road to the thief, who ran off towards the fields with the stolen motorbike. She was unable to follow due to passing traffic. Glynis ran back into our house and dialled 999, advising the police that she was observing a robbery in progress. An Hour and Twenty Minutes later the Police (one officer in a car) arrived. By then the bike was torched and dumped at the bottom of the hill with no sign of the thief. What would have happened if he had come back to confront Glynis, the witness to his theft? Who would she have called on?