Quarter of prisoners fail or refuse to take drugs test 

The Irish Prison Service said almost 1,400 tests had been carried out on inmates with 99 recorded as either a refusal to take a test or coming back with a false result.

More than a quarter of prisoners tested last year for drugs either failed or refused to give a sample as part of a nationwide operational testing programme.

The Irish Prison Service said almost 1,400 tests had been carried out on inmates with 99 recorded as either a refusal to take a test or coming back with a false result.