The Book Police and Prison mentions about the different stages of investigation carried out by Police Officers in India. It starts from the time the First Information Report is lodged in local Police Station and till the charge sheet is filed. It is a long process. The Book also deals with prisons or correctional homes. There are 3 groups of detained persons who stay in the judicial custody. One group of prisoners are those prisoners who are yet to be proved as guilty and are kept during the period when police is already investigating. There is another group who had been sentenced with imprisonment after being proved guilty by criminal courts in India. There is another group of prisoners who have faced sentence for not abiding by court orders. There are many release processes. The Book contains process relating to Parole, Furlough, Probation and other release processes. At the same time there are discussion about Juveniles in conflict with Law whose detention process in Observation Homes and Special Homes are different than the ordinary correctional homes. There is role played by Probation officers in giving Social Investigation Report before JJB. The Book also speaks about the hurdles faced by the Investigating Officers in collecting evidence. In Criminal Cases burden of proof is always on the shoulders of the Prosecution and wherever there is lacuna the doubt goes in favour of Defense and case ends in acquittal. There is strong discussion about reforms relating to Forensic Science Laboratories in India, Police system in India and Correctional Homes or Prisons in India.