– For these purposes where the following pairs of drugs appear together they shall be treated as one drug as they may appear in the body as a result of a single drug use: Cocaine and benzoylecgonine (BZE); 6-Monoacteyl-morphine and morphine.
– Trace levels of alcohol or drugs, which may occur naturally in the body or through accidental exposure, should be disregarded for these purposes
– Regard should be had to totality (see step 5) if sentencing for more than one offence.