At the last count, there were 1.2 million persons arrested by the police for recorded crimes in 2011 to 2012.
People are arrested and interviewed by the Police when they are under suspicion of having committed a criminal offence.
The Police may arrest you or seek to interview you by prior appointment. Interviews can take place at a police station, your home or place of work, or other location such as a prison if you are already in custody or on occasion the Police may ask that you come to the police station voluntarily just to be spoken to.
However, you should be aware that there really is no such thing as having ‘a brief chat’ with the Police.