Who has authority in an emergency?

I am a Washington state paramedic, I’ve recently seen a video out of Canada where a fireman directed a law enforcement adjacent person to uncuff a patient, to which the comments went wild saying the fireman was out of line.

What I would like to know is this, do I as a paramedic responding for a medical emergency of a person in custody have the authority to ensure the cuffs come off the patient when they obstruct my ability to do my job? I have always been under the impression that healthcare supersedes justice as you cannot charge a corpse.

Thank you

Location: Washington state

Author: dumbluck26