the rights are
No. Miranda is only given if you are in custody AND they are going to interrogate you.
A suspect should be given his Miranda warning upon arrest, as that indicates that the police intend to question him/her in their custody.
the government was forced to impose martial laws (where the police are given extra power to arrest
In order to make a warrantless arrest, a police officer must be given permission to enter or be in an emergency situation. In both instances, the officer must have sufficient probable cause to make the arrest.
If the police have articulable probable cause to place you under arrest at the time they made the arrest, they may do so at any time and in any place. Insufficient information is given in the question about the issuance of the warrant, which may have been for an entirely different cause. If the police made an illegal arrest it is a defensible reason for the dropping of the charges.
This is what the British Police say when they arrest. There are 2 types, suspicion and arrest. They are similar, but not exactly the same. They are: Suspicion (*****) I'm arresting you on suspicion of (*****). You do not have to say anything, but it may harm your defense, if you do not mention when questioned something which you later rely on in court. Anything you do say may be given as evidence. Do you understand? Arrest (*****) I'm arresting you for (*****). You do not have to say anything, but it may harm your defense, if you do not mention when queestiones something which you later rely on in court. Anything you do say may be given as evidence. Do you understand? Do you notice the difference? If you don't the difference is on suspicion it's 'on suspicion of' and on arrest it's 'for'.
Warrants are NOT issued by the police. Warrants are issued by the court - they are then given to the police to carry out. The police operate on PROBABLE CAUSE, and if you know that they want someone, perhaps they do not have sufficient probable cause for an arrest or, perhaps, they may not have been able to locate the individual.
No. It could become arrest (or a custodial interrogation) if the person is not free to leave. Added: If 'probable cause' is developed during the questioning - at that point they should (by all rights) be given a Miranda warning and an arrest can be effected.
Currently he can't be. That is because Ecuador has given him shelter in their London embassy. Also They have granted him asylum but if he tries to leave the embassy London police will arrest him.
The officer can only make decisions on whether to arrest, cite, or not to arrest, referred to as officer discretion. The officer cannot (honestly) promise leniency of a charge because they do not have that authority. Charges are filed and issued by a prosecutor, not a police officer. Any statements given to a police officer based on a "promise of leniency" without the prosecutor's cooperation will be considered coerced and inadmissible.
Police can DETAIN you for whatever reason. It's all about police safety. It's when they arrest you, when they have to use legal protocal. The traffic stop could have happend because of a suspected felony or a possibly dangerous person.
Define "questioned by police." The circumstances and situation needs to be known before a knowledgeable answer can be given. Were you simply spoken to while on the street and not in custody? Were you taken into custody and formally questioned as a result of your arrest? What?