A Positive Reaction
On seeing the man, the dog began panting with its tongue hanging out of its mouth.
It had long since stopped the sign of aggression witnessed just a while ago and had returned to its docile state laying on the grass until the man arrived. Seeing the reaction the dog had to the man, the officer in charge decided that allowing the man to approach was unlikely to elicit any negative reaction, so he ordered his other officers to let him through.