Robbery and burglary has soared since the economic collapse five years ago, a new report has shown.
But there has been a sharp drop in the number of killings, motoring offences and public order misdemeanours.
Between 2007 and 2011, there was a 49% rise in sexual offences, according to the Central Statistics Office (CSO) study of Garda crime figures.
Researchers pointed out the massive increase was mainly down to a review of all sex offence cases launched three years ago.
However, robbery, extortion and hijacking offences jumped 34%, crimes involving dangerous or negligent acts rose 19%, while burglary and related offences were up 17% over the same period.
Murder, manslaughter and other killings dropped by 51%.
Road traffic offences were also down by 31%, while public order and other social offences decreased by 19% with recorded incidents of damage to property dipping 18%.
The CSO said changes in crime figures can be caused by many different factors, including changing criminal behaviour, Garda activity, legislative changes and changes to the way offences are classified.
The report shows less than a quarter (23%) of all burglaries were solved in 2011. Just over a third (36%) of thefts were resolved, according to the detection rates.
The crime least likely to be solved was theft of a bicycle, with just one in 10 reported incidents satisfactorily concluded.