
Quoting
HILEO1
As a police officer in the Aloha State, I can assure you that the police report will state the time of the initial stop by the LPO, the time of police arrival at the store, and the time of arrival at the cell block. If the OP wishes to argue a 4 hour detention in front of the court, the judge will defer to the times written in the police report as fact. The report may challenge or confirm this assertion, so it would be prudent to check what the report says.
Furthermore, as has been previously stated, police officers in Hawaii can be very busy and shoplifting cases are low on the priority list. I am certain that the LPO knew they would be contacting the police as soon as the citizens arrest was made. However, the store shoplifting report must be generated (typically several typed pages) and printed out, the prices of the stolen items must be verified, and photos of the items and the suspect must be taken before officers are called. If officers show up and these things are not ready to go, they will simply leave again and tell the LPO to call when everything is ready. This process takes at least an hour for a simple theft case and can be much longer depending on the circumstances.