Yes, it is, if Pakistan still follows the Criminal Procedure Code. It could be either a criminal or a civil offence.
What the constable did was not legal; it constitutes battery, and is an offence under law as well. He can, and should be prosecuted. If he had arrested the lady for assault, that would have been legal; assault is a cognisable offence, and he had that right.
It is under both ppc pakistan penal code and civil wrong of law of torts.
As we know by the simplest of definition that tort is a civil wrong.
According to ratan lal assault and battery come under trespass to person.
" wrongs affecting the safety and freedom of the person are often termed as trespass to person"
Definition of assault.
Simplest form its laying of hands by one person upon the body of another person with an intention and apparent ability to do violence to the assaulted person.
According to Winfield. " assault is an act of defendant which causes to the plaintiff reasonable apprehension of the infliction if battery on him by the defendant"
Elements of assault.
Gesture constituting a threat or force
A reasonable apprehension of the use of force
Defendants ability to carry out threat.
Now let's move to battery
Battery is the intentional use of force to another person without legal justification.
Elements are
Use of force
Intention
Without legal justification
Difference between assault and battery
Use of force
There is no use of force in assault
There is use of force in battery.
As to apprehension
There is apprehension of the use of force
There is no apprehension of the use of force
As to nature
Assault does not include battery
Battery includes assault.
Now there are defences.
Self defence. However one must remember that the self defence must never be greater than the threat perceived.
Parental authority
Expulsion of trespasser
Preservation of public peace
Consent
Legal process
Inevitable accident
Remedies
Under law of tort
Damages to injured person.
Under criminal law in accordance with ppc as in assault section 351.
I would write more but its 4:32 am and I am tired.