Can a private investigator hack into a phone?

[R2D2]

Private investigators typically cannot legally hack into devices such as phones, computers or tablets. Hacking into someone's devices without their consent is a violation of privacy and illegal in most jurisdictions. Private investigators are required to operate within the boundaries of the law and are limited to conducting investigations using legal methods and techniques.

If you have found a 'hacking' service online, whereby you are paying for an account or device to be hacked into, then there is a very high likelihood that you will be scammed after paying for this type of service. 'Hacking services' are of course totally illegal; and so the hope for most scammers is that their victims will not report that they were scammed after having paid for an illegal service.