Is it possible to remove your fingerprints?
Yes!Disclaimer: If you are asking this with some bad intentions then the process can be really painful. And unfortunately, there are still ways to get prints. (Cheers!)As mentioned by Tracey Bryan, criminals had in the past tried different methods for destroying their fingerprints, and the most common was burning fingers. Finger prints is nothing but the unique pattern of ridges and troughs arranged on your finger tips. So damaging a ridge alters your fingerprint.People who are employed as physical labourers (like in manual agriculture practice, or on construction sites etc) lose their fingerprint.For those who have a criminal background it may come as a blessing but then it also has a con side. Since in most of the developed countries, fingerprints have become the identity of people, losing them would mean losing identity and may deprive you from social benefits.This is one of the reasons why biometrics is becoming multi-modality. Governments have started taking Iris scans also (for removing them you need to destroy your eyes), palm vein scans etc. which are not as fragile as fingerprints.
How can we change our fingerprints temporarily?
I’m not totally sure what it means by “change our fingerprints temporarily” but I can share what I know. Fingerprints can never be changed, they stay the same throughout life.The only time the prints may look different is when the person has damaged permanently the skins on the fingers (e.g. a deep knife cut or bad burnt) making it impossible to make out the original prints.Perhaps this question could be clarified by the original questioner, I may able to answer further.
If you burn or cut your fingertips, does the skin grow back with the same fingerprint?
Finger, palm, toe and foot prints are for life.Some criminals, I believe, have successfully removed them by actually cutting off the skin completely and having them sewn back together. They have a scar down the middle or on the side. It looks pretty bad. If fact it looks deformed. Using a corrosive substance has been done. Does not seem to yield acceptable results, as much like cutting them off, they will regrow. Burning them off. This has received some questionable support, but many seem to think they will grow back. Rubbing them off. This method is only temporary and they come back even better.Law enforcement would really be highly against this as they use them to identify. This would not happen. Of that, I am sure.Scientifically, your DNA is still there. With mitochondrial DNA, one can pretty much get your DNA from anywhere. It is of course easier if they can get a swab or blood or seminal fluids. One test and done pretty much these days.Unless you literally cut off the tip of the finger like I spoke about above, the fingerprint always grows back exactly the same as before.Some claim there is a medication that will make your fingers and toes swell but when the swelling dissipates the same fingerprint is there.There are folks that inject solutions into the tip of their fingers to obliterate their prints. That can be really painful and as soon as the swelling goes down the print is back.We are born with them and we die with them.
Can one change his fingerprints with the help of plastic surgery?
In a word, No. The only way to change your fingerprints is to erase them. Which would entail inflicting third degree burns to the entire palmar surface of the hand. The nerves in the hand and in particular the finger tips have a huge representation in the sensory cortex of the brain, the part of the central nervous system that allows us to perceive sensation. The amount of pain that will entail burning off your fingers will be horrendously overwhelming. Remember the last time you got a paper cut and how much it hurt? Hope this helps!
Can a U.S. citizen be denied entry into the United States?
If a citizen arrives at a port of entry that is on USA soil, the citizen cannot be denied entry.Outside the USA, the government can and will deny USA citizens access to transportation to the USA.It can refuse to issue a passportIt can tell the airline or passengers shipping line to not board the citizenAt pre-clearance airports in Canada, Ireland and other countries it can refuse to clear the citizenThe USA doesn't routinely do this because if it did, more countries would require visas for USA citizens and insurance. Canada etc would close the pre-clearance facilities.Edit: examples for skeptics:http://www.law.cuny.edu/academic...In the above, USA citizens in Yemen are denied USA passports and so are stranded.https://www.flyertalk.com/forum/...In the above, at a preclearance airport in Canada, CBP was not going to let a USA citizen board his flying to the USA until be broke attorney / client privilege. He found a compromise that allowed him to keep his law license.
Can the police track your cell phone if it's turned off?
No. The phone needs to transmit radio waves for it to be tracked.The exception is that certain types of malware make your phone turn itself on and transmit without seeming to do so (the screen stays off). I’ve read about police agencies using this trick to track cellphones or turn them into listening devices.So if you really don’t want to be tracked, take the battery out. Then the phone is dead, dead, dead.