GENERAL PART
VII C H A P T E R S E V E N
PUNISHMENT
Credit for the Period Spent in Custody and Credit for Punishment under an Earlier Sentence
Article 56
(1) The time spent in custody pending trial, as well as any deprivation of freedom related to the criminal offence, shall be counted as part of the sentence of imprisonment, long-term imprisonment, juvenile imprisonment or the fine.
(2) In each counting of the credit, one day spent in custody pending trial, one day of deprivation of freedom, one day of juvenile imprisonment, one day of imprisonment, one day of long-term imprisonment and a fine of 100 KM, shall be deemed equal.
Credit for the Detention and Sentence Served Abroad
Article 57
The detention, deprivation of freedom in the course of an extradition procedure, as well as the punishment which the perpetrator served upon a judgement of a foreign court, shall be credited toward service of the sentence imposed by the domestic court for the same criminal offence, whereas if the punishments are not of the same kind, the deduction of the punishment served abroad shall be effected in a way the court finds fit.
Reduction of national sentence following pre-trial detention - national proceedings
EDIT.