Resisting Public Officers in the Performance of Their Duties (Pen. Code, § 148) Misdemeanor
"Every person who willfully resists, delays, or obstructs any public officer, peace officer, or an emergency medical technician . . . in the discharge or attempt to discharge any duty of his or her office or employment, when no other punishment is prescribed, shall be punished by a fine not exceeding one thousand dollars ($1,000), or by imprisonment in a county jail not to exceed one year, or by both . . . ."
There is no violation of this section unless the suspect "actively impedes" an officer. For example, where a suspect through his conduct, the use of force, or even the threatened use of force interferes with the performance of an officer's duty there is a clear violation of section 148. (Pool (1986) 42 Cal.3d 1051, 1070.) Flight during a lawful detention constitutes "resisting" (see Quiroga (1993) 16 Cal.App.4th 961, 967), as does running and hiding when an officer is about to effect a detention (Allen (1980) 109 Cal.App.3d 981, 987). Providing officers with a false name following a lawful arrest constitutes "obstruction." (Christopher (2006) 137 Cal.App.4th 418, 431-432 [separate chargeable offense under Pen. Code, § 148.9 irrelevant].)
However, when it comes to basing a violation of section 148 strictly on a suspect's use of words (other than threatening to use force against you), you must proceed very carefully because "the statute must be applied with great caution to speech." "The areas of unprotected speech are extremely narrow." (Quiroga (1993) 16 Cal.App.4th 961, 968.)
For example, there is no violation where a suspect merely challenges your actions ("You need a warrant to be in here"), shouts obscenities, throws down an ID, or obeys your orders very slowly. "While the police may resent having abusive language directed at them, they may not exercise the awesome power at their disposal to punish individuals for conduct that is not merely lawful, but protected by the First Amendment." (Quiroga (1993) 16 Cal.App.4th 961, 966; see also Pool (1986) 42 Cal.3d 1051, 1070.)
On the other hand, if a person's speech goes beyond criticism of the officer and constitutes an attempt to intimidate a suspected victim, then a section 148 violation has occurred. In other words, although a person has a right to criticize the manner in which you are conducting an investigation, the First Amendment is not a license to intimidate a suspected victim into denying commission of criminal conduct. (Green (1997) 51 Cal.App.4th 1433, 1438.)
Likewise, while a person has some leeway not to immediately respond to a police command, responding with defiance, whether by words or actions, may constitute a section 148 violation.
* Example: Defendant stepped up to a police vehicle where an arrested suspect was sitting and began talking to him. When officers ordered him to step away, he acknowledged them with a hand gesture but continued talking. This was a section 148 violation. (Muhammed C. (2002) 95 Cal.App.4th 1325, 1330.)
* Example: It was a violation of section 148 for the defendant, upon observing an undercover operator attempting to purchase narcotics from a suspect, to shout to the suspect, "Get away from that guy! The guy's a cop!" (Robles (1996) 48 Cal.App.4th Supp. 1, 6-7.)
* Example: It was a violation of section 148 for a father, when officers entered his house to investigate possible child abuse, to enter the bedroom with them, yank the covers off his child (the suspected victim) and say, "Son, get up. The police are here because they think I have been beating you. You know that didn't happen, but that's what they think." (Green (1997) 51 Cal.App.4th 1433, 1437-1438.)
Additionally, there can be no violation of section 148 , unless the defendant knows, or reasonably should have known, that the person attempting to make the arrest was a peace officer. (Lopez (1986) 188 Cal.App.3d 592.)
This section also prohibits a person from removing a firearm or other weapon from the person or immediate presence of an officer. It makes no difference whether or not the person is "resisting" at the time he takes the firearm or other weapon. Furthermore, if he takes the firearm, it makes no difference whether or not the person intends to permanently deprive the officer of its possession.
Lastly, it is also a violation of section 148 for a person to knowingly and maliciously interrupt, disrupt, impede, or otherwise interfere with the transmission of a communication over a police radio frequency.