All of this talk about equal treatment is nonsense. Physically, nine times out of ten, women are inferior. That needs to be kept in mind when deciding what level of force to use, and how much force to use. If you're still wrapped up about feminists and equal treatment because you intend to be disingenuous, think of it this way: If a scrawny dude is trying to get scrappy, I'm using contact controls or compliance techniques. I'm not going straight to defensive tactics, and leaving the dude in a pool of blood. Why? Because he's frail and pushing me doesn't give me the right to swing on him, in much the same way that punching me doesn't give me the right to skip straight to deadly force. As an officer of the law, you're supposed to be taught how to make people compliant without turning it all the way up to 11. This guy clearly did not have that skill set for whatever reason.
He was exercising caution with the first girl. When the second girl came up and shoved him, it was no longer about control, it was about defense. Another thing to keep in mind is that women generally act on emotion, not logic. You can't apply a logical mind when dealing with a woman because they generally aren't rational under stress like most men. They act purely on emotion. The smallest angry woman can knock you out as fast as the heaviest man. That's just the way they are. In a fight, anger is as good as bravery.
If compliance techniques are not part of their training regiment, it needs to be added immediately, otherwise when it's two guys instead of two women, this cop doesn't stand a chance unless he pulls his pistol on them.
It's part of every cop's training. My brother had to take a six week class on just that. He says the cop used the best judgement he could have. Cops are trained for every possible situation. My brother described the use of force matrix to me earlier.
Level 1: presence. Your mere presence is a show of force. When you show up to control a situation, the mere sight of an officer approaching is enough to calm most people down.
Level 2: command. Let's say the person doesn't calm down. "You sir/ma'am, calm down and stand over here."
Level 3: touch. The person doesn't calm down, but continues to argue or whatever they're doing that they shouldn't be doing. "Sir/ma'am, calm down and stand over here." This time you grab their arm, and try to lead them away from the situation.
Level 4: control. The person actively resists your touch. Now it's time to use physical force. You'll notice in the video, the first girl was struggling, but not in a way so as to endanger the cop. He knew he wasn't in any danger, he had both of her arms. He didn't want to hurt her. Of course he could have put her in a hold, but that would hurt her, and as you said, she's just a teenage girl.
Level 5: deadly force. Speaks for itself.
http://legal-dictionary.thefreedictionary.com/Deadly+Force
When a cop arrives at a call, their minds go through all of this. They assess the situation and take the appropriate actions.
My brother spent about 40 minutes after that teaching me compliance techniques, which was fun. That cop could have put her in a hold and just slammed her on the ground, but he was being a gentleman. It's a teenage girl, she's being arrested on a jay-walking charge, not for a violent crime. He's not about to use force on her. He was holding her, she would have worn herself out eventually.
Here comes the girl in the pink shirt, being a *****, trying to protect her friend. Understandable, she was highly emotional, but she made the wrong move. You can see her friend trying to hold her back, which means someone else knew she was about to do something extremely stupid. She ignores her friend, walks up to the cop, and shoves him. That's assault.
Now, when you punch someone in the face, they're not likely to get back up and mess with you again, for two reasons. First, it hurts. Getting punched isn't fun. But it doesn't only hurt their face, it hurts their pride. It's demoralizing, they feel like less of a person. After he punched her, she was nowhere to be found. She ceased to be a threat and he was able to make both arrests without much resistance.
As a side note, the pain induced by tazing only lasts a few minutes after the shock stops whereas getting punched in the face usually means having an inflamed cheek and black eyes for a week. I'd rather someone attempt to punch me, but only because it's easier to evade/counter.
Have you ever had a black eye? It hurts like any other bruise. You can poke at it and it'll hurt, but it's not like it's constantly throbbing until it heals. It's a big bruise over your eye. Big deal. She wasn't permanently harmed. Believe it or not, cops are trained to punch people in the face in situations like these. He did absolutely everything right. Do you really think he wanted to hurt her? He probably feels like an ******* about it right now, but he had to do it, she assaulted him and was escalating the situation.
Ok, you say people may have been incited to intervene. The girl was already intervening, he had to make an example. What would have happened if she had shoved him and he did absolutely nothing? "This cop is a pussy, he's not going to do anything." Nobody sees him as an intimidating force anymore. If this teenage girl can push him around, what's to stop others from trying to intervene as well?
He could have let the first suspect go, or he could have tazed her. Those were really his only two options. Tazing is far worse than getting punched in the face, and if he had been attacked by a third person while tazing the second and holding the first, he couldn't holster his weapon fast enough to react. He would have dropped it. Now there's a weapon on the ground that can be used against him.
If he had done absolutely nothing and just took it, he would have lost all control, and control is the most important thing when you're surrounded by people who are potentially hostile to you. You are a dominating force, and you have to remain as intimidating as possible for your own safety. This is why cops still carry asps. They're rarely used to attack someone. The mere sight and sound of an asp extending, and the heavy presence of the officer holding it, is enough to deter most suspects. Asps are also useful tools for the same reason they're good at breaking bones.