Does a security officer have the police power to make an arrest in new jersey?

No, NJ does not give Private Security officers/guards any special police powers to execute an arrest. You only have the power to make a citizens arrest. However you should talk to your employer first, since they may not want you to arrest anyone, due to the problems that come with court fees and liability issues. You function as a private citizen. Some states do grant Security guards police powers, Ex- federal security officers. You can detain individuals however you may be accused of false imprisonment which carries the dangers of liability. Train conductors, teachers, firemen, EMT's ect.. are all protected under the law, for being state employees. Private security officers work for private corporate interests, not the state. I used to work in security, but due to the dangers of liability and not having any special status within the law, i quit the industry.