The police officers in this situation could not simply allow a person to walk away when they need information from that person. They had a report of someone trespassing. It is their job to find out the information of the case. Why the guy was there when he was told not to be by a representative of the owner of the property (the security guard) and who he is was relevant to the situation. He refused to give that information. This is hindering a police investigation. Then he tried multiple times to simply leave when he was being detained by the police, further hindering the investigation of the complaint. It doesn't matter if his children or any children were there at the time. That is irrelevant to the situation.
What is the definition of being detained by a police officer
This is what happened. He was being detained by the police because they had a "reasonable suspicion" that a crime had occurred because they had gotten called by the security officer. This means that they had a right to investigate that "crime", including detaining the "suspect". He starting walking away and never asked if he could leave. He should not have felt free to leave since he was told not to several times by the police. Had he not continued to try to leave, then he wouldn't have been arrested. Had he then not resisted arrest, he would not have been tasered.The officer has the authority to temporarily deny you the ability to leave while he investigates his suspicion. You may still refuse to answer any questions, but you have no right to leave. The officer must use a reasonable amount of time to investigate his suspicions until the detention elevates to the level of "probable cause" to arrest you. If the officer fails to determine there is probable cause for an Arrest, he must release you in a reasonable amount of time. The courts have determined that what is a reasonable amount of time is relative to the criminal activity being investigated. If you attempt to leave a detention without the permission of the police officer, you may be subject to Arrest.