As soon as he arrests you, for sure. However, this is a complicated situation - if the officer 'suspects' you of a crime, it is his duty to inform you of your rights, before you say anything that may incriminate you This time period can be difficult to determine, since all conditions must be taken into consideration - when did the officer confront you, and why? what did the officer say to you when he first addressed you; what were the conditions that led to you and the officer being together; what information did the officer have about you before he confronted you; what did you say to the officer, etc. The reading of your rights called the Miranda warnings or Miranda rights is designed to protect you from making incriminating statements or a damaging confession to a crime, so if you are arrested or even if it is the intention of the officer to arrest you, he must inform you of your rights and you must understand your rights and not say anything out of fear, intimidation, promise or any form of duress. The matter is usually addressed in a full hearing in court In a Motion to Suppress any incriminating statements made by you under any form of duress. There are exceptions, such as spontaneous utterances made by you before the officer has a chance to warn you or read you your rights.
Answered on Dec 30th, 2012 at 12:01 PM