<span>The custodial model of incarceration. This means that the prisoner is being deterred from committing further crimes, that they are (in the minds of society) serving time for their wrongs committed against society. In effect, society acts as a custodian to them as they are kept in custody rather than focused on the change of the person to go back into society.</span>
Demographers are scientists who study human populations. They tend to map and understand the dynamics of population, which includes birth, death, and migration. All of these affects population and must be studied by demographers. They may study the population change within a country or the interrelationship of countries' populations, which is mostly necessary in studying migration. However, they could also take specialization. For example, they could study only parts of the population like workers' social pattern. Demographers mainly use statistics in mapping their data.
Archaic Period. Hope this helps