The rubrics have the following. During the intercessions the instructions are:
“During the intercessions the godparents stand with the right hand on the shoulder of the elect.”
After the intercessions there is the exorcism. For the first part “The celebrant faces the elect and, with hands joined, says” … At the end of this, there is a response of “Amen”. Then the rubrics are:
“Here, if this can be done conveniently, the celebrant lays hands on each one of the elect.
Then, with hands outstretched over all the elect, he continues:” Everyone responds “Amen” and the end of this second part.
In Mass, the celebrant will be a priest or bishop. But the scrutinies may not be part of a Mass, since it has “155. … if the eucharist is not to be celebrated, the entire assembly is dismissed by use of option D.” But for the scrutinies is has “144. In the rite of exorcism (nos. 154, 168, 175), which is celebrated by a priest or deacon, …”.
For minor exorcisms, during the period of the catechumenate, the instructions are: “91. The presiding celebrant for the minor exorcisms is a priest, a deacon, or a qualified catechist appointed by the bishop for this ministry (see no. 16).”
So the “scrutiny exorcism” has a special importance, reflected in who can do it, over a “minor exorcism”.
The Rites Volume One, Liturgical Press, 1990, ISBN: 0-8146-6015-0.
The RCIA introductions for England and Wales are at catholic-ew.org.uk/liturgy/Resources/Rites/RiteRitual.html#RCIA . The USA edition has different paragraph numbers.