Thanks for your question.
In Connecticut, "erasure of criminal records" (also known as expungement) is only available to people who:
* were found not guilty or had their charges dismissed
* received a pardon for their crimes
* disposed of their cases with a nolle prosequi
* were convicted on charges that are now decriminalized
However, a pardon might be successful in your son's situation. A petition and supporting documentation would be filed with the Connecticut Board of Pardons to obtain one of two types of pardons: either an absolute pardon, or a provisional pardon.
If an absolute pardon is granted, records of a criminal conviction are removed from public view so that they cannot be used to prevent you from obtaining employment, being granted certain state issued licenses, or being allowed to cross international borders with a valid passport. If a provisional pardon is granted, criminal conviction records are not removed from public view, but it is still helpful in removing barriers to obtaining state issued licenses and employment.
In 2008 in Connecticut, about 60% of all pardon applications were granted and 40% were denied, so there is a better than 50-50 chance that your son could successfully obtain a pardon for his felony conviction.
Hope this helps. Good luck!