Funding and legal issues can be changed to enhance the time needed to do the testing. Because thesis all paid for by taxpayer monies, the budgeting often lags that if primary enforcement. This needs tone looked into to see where improvements can be made. A quick test can and will give you more false positives and reduce reliability, increasing court challenges to the whole process. Don't allow quick DNA testing in the field. There are some tests that are quicker and can provide a good indicator to the truth if conducted while the perp is in custody, usually 24 to 30 hours.