Originally posted by Bikewer
The youngest child I ever arrested was seven. It was a resisting as well; I and a juvenile detective had to fight with the lad and restrain him. (We won....)
A couple of factors. One, most police departments specify that persons taken into custody must be handcuffed. Many police officers disregard this precaution with particularly compliant individuals, but it's always potentially hazardous.
In this case, with a small child who was evidently having some sort of control problems, one could concievably see the child causing problems in the police car if she were transported to a juvenile facility, or a hospital. Again, departmental procedure may specify this.
Police officers generally do not carry "humane" restraints, such as are often aboard ambulances. Perhaps this might have been a better way to go? If the child was out of control, working with paramedics might have been an option.
Then again, maybe not. Not all areas have such personel available.
Many schools specify that staff and faculty can almost never physically restrain students, unless they are being directly assaulted. The fear of lawsuits looms large.