The Dalek Scientific Division was a high-ranking group of Dalek Scientists in the hierarchy.
Their needs overrode all other orders and concerns in at least two missions. (AUDIO: The Genocide Machine, Return of the Daleks)
As pointed out by the War Doctor on Asteroid Theta 12, Dalek Scientists during the Last Great Time War possessed distinctive markings on their casings, with blue-coloured domes and sensor globes. (AUDIO: A Thing of Guile)
The Scientist Daleks of the New Dalek Paradigm were ranked by their orange colour scheme. (TV: Victory of the Daleks)