I've only ever NEEDED a cop twice in my life.
1. I was about 12 years old out riding bikes with my brother and a buddy in the back of our neighborhood near the woods when two drunk 20-somethings start chasing us down in their car around 3 in the afternoon. They are literally trying to kill us. We have to bail into the woods or ditches several times to avoid getting hit. Finally they get tired of us, have us trapped in a ditch, get out, and start chucking their empty beer bottles at our heads as hard as they can. I was the fastest on a bike so I tell my brother and buddy to go hide in the woods while I race back home and get Mom and Dad. (This was before cell phones.) While I'm biking back they reappear behind me, try to run me down some more, causing me to bail into ditches and forest a couple more times. When I get home I am crying, hysterical, completely out of breath from biking harder than I ever had or did again. Dad goes and gets my brother and friend in his truck while mom calls the police. When they arrive at the house they listen to me and immediately start calling me a liar, right in front of my parents. My parents get pissed, start screaming and hollering at the cops, they keep insisting that I must have made the story all up for attention. Then they are interrupted by a radio call saying that the car had hit a power pole a few blocks away while speeding after some other kids. The cops run out of the house, never showed back up. Later we found out that the driver was the police chief's son, is a useless college drunk dropout, and has done this before. It all makes sense now.
2. This was just a few years ago. My wife was at work and a few of her fellow employees had noticed a black dodge ram pull out of the parking lot behind her a couple times after work. So one day one of them saw it happen again and called her to let her know. She keeps an eye on him as he follows her at every turn into our neighborhood. So she freaks out and calls me. I tell her not to lead him to the house, to turn around, and come to my work. She does and once she gets to work he realizes what is going on so he leaves. This happens a few more times and every time she is driving and scared, so I call the cops for her from work the first time. She was just my fiance at the time, so they tell me they'll have to hear from her to do anything, can't do anything for me since we're not legally married yet. So the next couple times she calls them directly and they are always either too busy or can't legally do anything to help her. So finally one day while I am at work she goes outside to get the mail and guess who is standing outside his truck with sun glasses on with a shot gun in his hands by the mailbox????? She immediately slams the door and locks it, calls the police. He gets back in the truck, spins out, and leaves. Police say if he wasn't on our property there's nothing they can do, promise to patrol the neighborhood. (Never saw a single squad car.) So later that day she leaves in her car and notices him pull out behind her on hwy 98. She speeds up a little to make sure it was him and he speeds up too. She notices that behind him there is a cop following so she calls 911 from her cell and tells them the guy with a gun is following her and behind him there is a squad car, please pull him over! The operator says that she has the policeman on the radio, not to worry, the situation will be handled. They hang up and the squad car turns its lights on, pulls up around the truck, behind her, and PULLS HER OVER!!!!!! As he gives her a warning ticket for speeding the black truck passes by safely as she is crying, trying to explain to the officer who wasn't giving a **** that she was being followed by a man with a gun. He ended up following her one more time after that, she happened to be right near he police station, so she pulled into their parking lot and he passed her by. Haven't seen him since, but who the **** knows what will happen, he's still out there somewhere because the police don't give a ****.
I try not to let these experiences burn me too bad. I have friends who are cops and they are mostly good people. I've had friends who were cops in the past, some of them were only cops so that they could do illegal **** without going to prison though. You never know which you're going to get, which is why you should protect yourself no matter what.
ANYTHING YOU DO OR SAY WILL BE USED AGAINST YOU IN A COURT OF LAW.