Electronic monitoring can help deter people from committing further crimes, but it needs to be used along with other crime prevention methods.
Politicians like to appear tough on crime in election years. But Victoria's move to require youth offenders to wear electronic monitoring devices may not have a real impact.
Electronically monitoring migrants and refugees may seem like a humane alternative to detention, but it's rife with problems and still criminalizes would-be immigrants.
Scotland is about to greatly expand its use of tags to have more prisoners serve sentences in their homes and communities.
The days of prison, an 18th-century industrial institution, as the justice system's dominant form of punishment may be numbered. Electronic monitoring of offenders is one promising alternative.