careful.
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even when effecting a flawed arrest not supported by probable cause or warrant, an officer can still arrest defendants or witnesses for interfering with or resisting arrest which are separate stand-alone charges.
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courts have ruled that they prefer defendants and their witnesses to challenge arrests in court rather than directly interfere and challenge officers while they are effecting a flawed arrest. courts have convicted defendants and witnesses for interfering with or resisting arrest even when the original arrest was fatally flawed.
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requiring security to interfere whenever they deem an officer's arrest flawed is requiring security to risk arrest and conviction for interfering with or resisting arrest.