Probable Cause

What is Probable Cause?

If you have read our blog on police encounters you have a better understanding of your rights when approached by a police officer.

It’s a 3-Question Process:

Officer, am I free to leave?
Officer am I being detained?
Officer, am I under arrest?

If the officer said you are under arrest, this arrest is based on probable cause.

What is probable cause?

Probable cause is defined as facts and circumstances sufficient to believe a crime has been committed. Your lawyer, will learn whether the officer in fact had probable cause to arrest you. For example, regarding DWI criminal defense, Texas courts have held rapid acceleration, weaving, speeding, verbal defiance, leaning on door for support, mumbled speech, bloodshot eyes, smell of alcohol, and poor performance on field sobriety exercises provided sufficient probable cause for a DWI arrest. In contrast, Texas courts have held speeding, an illegal u-turn, and a variation of the field sobriety tests did not provide a sufficient basis for a DWI arrest.

What is the difference between a mere encounter, a detention, and an arrest?

A mere encounter requires no suspicion at all. It is an exchange of information. A detention requires reasonable suspicion and is a temporary investigation. An arrest requires probable cause. Think of a staircase. The first step, mere encounter, is the lowest form of police interaction. The second step, a detention, requires suspicion a crime may have been committed. The third step, probable cause, requires sufficient facts to believe a crime has been committed. Your criminal attorney will examine the encounter, detention, and arrest to determine if each step was conducted lawfully.

What if the officer didn’t have probable cause to arrest me?

If the officer arrests you without probable cause, than the arrest is unlawful and in violation of your constitutional rights. Any evidence obtained from that unlawful arrest is known as “fruit of the poisonous tree.” Your criminal defense lawyer will move to have any unlawfully obtained evidence suppressed. Suppressed evidence means no evidence. No evidence means the state likely can’t prove their case and must dismiss.