So If The Dea Comes Across Evidence Against Americans While On A Phone Tap In An Investigation

How can you find a bug (listening or video device) in your house? What are some cheap ways to debug?

A “bug” is a listening device placed in a room or vehicle. One of a bug’s components is a microphone. The microphones in these devices are usually very small. Video cameras can also be a type of bug. Do you feel like you're being watched? Maybe you just want to make sure your privacy is protected. Here are some different ways to find a bug in your house.Method 1 - Initial SweepDo a physical search of the premises. This involves a slow, meticulous sweep of the room or building you suspect is wired.Listen as you walk the entire room quietly. Many small, motion-sensitive cameras make an almost inaudible click or buzz when they operate.Method 2 - Use DarknessTurn off the lights and look around for tiny red or green LED lights. Some microphones have "power on" indicator lights, and if the person who sets it up is careless they may fail to cover or deactivate this feature.While the lights are off, grab a flashlight and carefully examine all mirrors. These can be made transparent from one side so that a camera can see through, but they rely on the observer's side being darker than the area observed in order to keep the other side of the mirror reflective.Search for pinhole cameras in the dark. A pinhole camera might have a charge-coupled device (CCD) sitting behind a tiny opening in a wall or object.Method 3 - Use a Signal DetectorSearch for pinhole cameras in the dark. A pinhole camera might have a charge-coupled device (CCD) sitting behind a tiny opening in a wall or object.Use your cell phone to pick up an electromagnetic field. Place a call on your cell phone, then wave the device around where you think there might be a camera or microphone. If you can hear a clicking noise on the call, it means your phone might be interfering with an electromagnetic field.Source: (Wikihow)

Do local police departments have the ability to listen to cell phone calls? If so, could this power be abused by an operator?

For Part 1 of question - simply yes, with lawful authorization the police can listen to your cell phone calls as well as intercept text messages, chat messages and discover the location of your phone using its own GPS technology.  Of course, you would have to be committing a crime where any of these tactics would be deemed necessary.  Often there is a higher threshold of evidence required prior to authorization of any warrants or orders to get access to your information this way.There are specific callers and phone numbers that will get identified that the police department will be authorized to listen to during these intercepts. Could it be abused by the operator?  Do you mean the police technician monitoring the calls?  They can't use any evidence collected unlawfully against you and should you discover that the police wilfully obtained evidence knowing there method was unlawful you might want to get some legal advice.However if you just mean could the phone carrier listen and abuse their ability to access your calls?  Unrelated to policing, about a decade ago I learned that an ex of my girlfriend at the time worked for the phone company.  Apparently he was a jealous or curious guy and would often listen in to her calls to see who she was talking to or dating.  I don't know what kind of quality control exists at the phone companies now to prevent anything like from happening in this day and age though.

How is it legal for the police to put a bug in someone's house, but they cannot enter it without a search warrant?

How is it legal for the police to put a bug in someone's house, but they cannot enter it without a search warrant?Eavesdropping of any kind, be it telecommunications or voice/video, has to be authorized by a court of competent jurisdiction. In the case of a Federal eavesdropping warrant, it would fall under Title III of the Omnibus Crime Control Act of 1968, as amended. As with a telephone intercept order, the eavesdropping warrant runs for thirty days and must be either terminated or renewed. Progress reports to the authorizing judge are mandated at ten day intervals. The judge may terminate the order if there has been no pertinent information collected when the reports are submitted.While it’s possible to wire a building from outside, it’s generally necessary or desirable to enter for optimum microphone placement, so a warrant is necessary to do that (it’s generally part of the eavesdropping order.) As with any other eavesdropping order, conversations must be minimized to exclude non-pertinent information. (You and your significant other in the sack, conversations about the dinner menu, and so forth would generally be non-pertinent.)

What is the difference in jurisdiction between the CIA, the FBI, the US Marshals, USSOCOM and the NSA?

They are different types of agency / team / command doing different stuff. CIA - Their official job is to collect intelligence from foreign countries. They gather data about US interest in anywhere in the world. Unofficially. they take care of US interests. CIA often conducts covert mission in order to steal / gather data, rescue / defecting foreign nationals, influence foreign policy to keep US interest or game in play. What we see about CIA in news and media is just TIP of the iceberg. FBI - Its a federal agency, they mostly handle investigative stuff. FBI takes care of specific crime only. Terrorism inside US, Cyber Crime, White collar crime, Corruption, Certain Abuse case. If any US citizen outside US faces any criminal case or victim of a crime, its FBI's job to investigate with or without host country's local law enforcement. They sometimes organise education program and drills for other law enforcement agency. US Marshals - They work under the COURT. US Marshal service protects witness, take care of criminals until sent to jail, protects court documents, evidence and also monitor criminals on probation or parole ( indirectly with local law enforcement ). Its US marshal's job to bring back a criminal who crossed border to a friendly country.  USSOCOM - USSOCOM manages all the special forces in all branches of US military. JSOC is a part of USSOCOM that manages all the operations conducted by any or every US special force like US navy seal or Delta force or Green Beret. Their operational jurisdiction is outside US soil. They research, gather intelligence via CIA or other sources and plan a operation for JSOC. Then JSOC conducts that operation, Like the one killed Osama Bin Laden. Here i am guessing you wrote NSA, cause your question actually says NASA. Probably a typo. NSA - NSA is basically a intelligence gathering agency. They do any and all kinds of surveillance. The original goal was to monitor foreign nationals inside US or outside US who might be a person of interest. Recently it came out that NSA also conducting surveillance over US citizen inside US. They read electronic mail, taps phone, bugs places and decrypt thousands of encrypted data every day. Then if they finds something important, they contacts proper authority about that finding, which is mostly the agency i wrote above.

Can a police officer track text messages? How can they be tracked?

As contrary to public believe police don't have magic software or open line access to the mobile provider data baseThe law is strict when it comes to personal privacyEvery country has its own procedures.1 — Tracking a phone number (knowing its location at a certain time (no real time tracking ),knowing it's owner ,new numbers put in it ,see phone logs and text logs with no content (like message from/ to but without seeing the actual message or having access to the vocal of a phone callAll those above are usually done with an Order from the police department to the respective mobile provider both keep archives of the said order and the results sent by the mobile provider ,this is used usually to track stolen phones ,missing people ,phone used in a crime ECT this doesn't need any intervention from the DA's office any Police officer can make such order (officer not agent )2 — spying on calls or getting text messages or live location trackingThis is extreme this is not a daily thing ,first you need a warrant from the DA to ask the mobile provider to give you such information and to get a warrant you need strong evidence and detailed report of your current investigation and what this results can be used to, the DA keeps the full right to give such warrant or notOnce obtained the Mobile provider grants the police access to the information they needAgain every country is different but citizen privacy is taken really seriously ,getting information from illegal sources might render the whole investigation nullified (don't know the real world in English ,but this means any criminals involved won't have any charges against them )