10.6. Stroke and Turn Judge. The Stroke and Turn Judge shall:
10.6.1. Observe the competitors in his/her assigned area to ensure all applicable rules pertaining to the stroke being swum are performed.
10.6.2. Upon sighting a violation, immediately raise a hand to signal the infraction.
10.6.3. The Stroke and Turn Judge will then fill out a DQ slip and will present it to the Referee for concurrence.
10.6.4. Insofar as possible every effort should be made to explain to the competitor the reasons for their disqualification.