If the team that called the foul or violation believes that possession has been affected by the foul or violation, the disc will be returned to the thrower for a check (unless the specific rule says otherwise).
16.2.4.2.
Associates
WFDF 2017 Rules
16.2.4.2.
If the team that called the foul or violation does not gain or retain possession as a result of the pass, play must be stopped.