Anyone who ever finds himself alone at night walking down a dark street may wish he had this iPhone case: it has a loud whistle at the top for the purpose of calling for nearby help in case of serious trouble.

Korean designer Sang Hoon Lee has designed an iPhone 5 case with a  whistle on top that can alert people who are nearby in case of an emergency situation. Of course, it's not for just blowing it if you are unable to carry your own bags or if your cat is stuck in a tree. This crime prevention iPhone 5 case weighs in at 35 grams, so it will bulk up your device, but that shouldn't matter when safety is first priority. While it was made for crime prevention, the whistle can also be used as any normal whistle situation, perhaps when refereeing a football game. Check it out at Whistlecase.com for more information.

Another safety product on the market is anti-rape lingerie. Indian engineering students at the SRM University in Chennai devised this thing. Students Manisha Mohan, Niladri Basu Bal and Rimpi Tripathi wanted to help stem the high levels of rapes in India, so they came up with something that would give rapists the shock of their pathetic lives.

These undergarments have pressure-sensitive touch sensors around the bust and genital area. If touched by an offender, this device will thereby trigger powerful 3800 kilowatt shocks, about 82 electric shocks. It doesn't end there, with built in GPS and GSM, an automated text message with the location of the victim will be sent to loved ones, and which can be given to the police.

The device is called SHE (Society Harnessing Equipment.) Have a look at Techpedia.in for more information.