Michigan Compiled Law 750.508 (See Below For Complete Text)

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750.508 Equipping vehicle with radio able to receive signals on frequencies assigned for police purposes; permit required; exceptions; misdemeanor; penalty; radar detectors not restricted. 
Sec. 508. 

(1) Any person who shall equip a vehicle with a radio receiving set that will receive signals sent on frequencies assigned by the federal communications commission of the United States of America for police purposes, or use the same in this state unless such vehicle is used or owned by a peace officer, or a bona fide amateur radio operator holding a technician class, general, advanced, or extra class amateur license issued by the federal communications commission, without first securing a permit so to do from the director of the department of state police upon application as he or she may prescribe, shall be guilty of a misdemeanor, punishable by imprisonment in the county jail for not more than 1 year, or by a fine of not more than $500.00, or by both fine and imprisonment in the discretion of the court. 

(2) This section shall not be construed as restricting the use of radar detectors. 
 

History: 1931, Act 328, Eff. Sept. 18, 1931 ;--Am. 1939, Act 295, Eff. Sept. 29, 1939 ;--CL 1948, 750.508 ;--Am. 1957, Act 242, Eff. Sept. 27, 1957 ;--Am. 1990, Act 77, Imd. Eff. May 24, 1990 .

Constitutionality: This section, which prohibits equipping or using a vehicle with a radio receiving set capable of receiving frequencies assigned for police purposes, was enacted to facilitate law enforcement activity. This section's restriction of persons permitted to monitor those frequencies involves classifications which are rationally related to the statute's objective, consistent with equal protection and due process guarantees. People v. Gilbert, 414 Mich. 191, 324 N.W.2d 834 (1982).

Former Law: See section 5 of Act 152 of 1929, being CL 1929, § 578.

750.508.amended Equipping vehicle with radio able to receive signals on frequencies assigned for police purposes; permit required; exceptions; misdemeanor; penalty; radar detectors not applicable. 
Sec. 508. 

(1) Any person who shall equip a vehicle with a radio receiving set that will receive signals sent on frequencies assigned by the federal communications commission of the United States of America for police purposes, or use the same in this state unless the vehicle is used or owned by a peace officer, or a bona fide amateur radio operator holding a technician class, general, advanced, or extra class amateur license issued by the federal communications commission, without first securing a permit so to do from the director of the department of state police upon application as he or she may prescribe, is guilty of a misdemeanor punishable by imprisonment for not more than 1 year or a fine of not more than $1,000.00, or both. 

(2) This section does not apply to the use of radar detectors. 
 

History: 1931, Act 328, Eff. Sept. 18, 1931 ;--Am. 1939, Act 295, Eff. Sept. 29, 1939 ;--CL 1948, 750.508 ;--Am. 1957, Act 242, Eff. Sept. 27, 1957 ;--Am. 1990, Act 77, Imd. Eff. May 24, 1990 ;--Am. 2002, Act 672, Eff. Mar. 31, 2003 .

Constitutionality: This section, which prohibits equipping or using a vehicle with a radio receiving set capable of receiving frequencies assigned for police purposes, was enacted to facilitate law enforcement activity. This section's restriction of persons permitted to monitor those frequencies involves classifications which are rationally related to the statute's objective, consistent with equal protection and due process guarantees. People v. Gilbert, 414 Mich. 191, 324 N.W.2d 834 (1982).

Former Law: See section 5 of Act 152 of 1929, being CL 1929, § 578.