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https://www.portlandoregon.gov/police/article/526054
Prohibited Pursuits (630.05)
a. Persons whose identities are known, who can be apprehended at a future time, and whose driving or conduct does not create an imminent threat of serious physical injury or death, will not be the subject of a pursuit. The sole exception to this prohibition is if the reason for the pursuit was his/ her involvement in a life-threatening felony.
Thanks, but that looks like department policy for the Portland PD, not state law.