CHAPTER II. 
POLICE POWER, “DUE PROCESS,’ AND NUISANCES. 
§11. Definition of Police §18. Nuisance. 
Power. § 19. Nuisance Per Se, and In 
§ 12. Police Power Resides in Posse. 
the States. § 20. Nuisance a Question of 
§13. Alienum Non Laedat. Fact. 
§ 14. Police Power Is Above §21. Changes in Legal Nui- 
Private Rights. sance. 
§ 15. Police Power Cannot Be § 22. Treatment of Nuisances. 
Alienated. § 23. City Must Not Commit 
§ 16. No Property Right in Ar- Nuisance. 
ticles Acquired or Used § 24. Authority for Abatement, 
Contrary to Law. Not for Construction. 
§ 17. Due Process of Law. 
11. Definition of Police Power. Governments 
use various powers, such as that of taxation, 
treaty making, control of commerce, etc., but the 
one which most concerns members of the medical 
and surgical professions is embraced under the 
somewhat indefinite term of ‘‘police power.’’! 
This power is by no means confined to the use of 
the officers whom we call ‘‘police.’? Much of their 
duty pertains to the enforcement of the criminal 
law, from which police power is quite distinct. 
Police power is that inherent power in govern- 
ments which is used for self protection. It tends 
to prevent misfortunes and calamities, and it 
works largely by placing restrictions upon undue 
liberty of action on the part of citizens. An exact 
definition of the limits of the power has never 
1 PuBLIC Hear, Chap. VI. 
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