New Zealand Judge David McNaughton said that whether bail would begranted "remained an open question in his mind" and added that he needs more time to review submissions at the hastily arranged hearing in Auckland.
The former military ruler faces a string of charges dating from his final months in office - but he has been granted protective bail in these cases, which means he cannot be immediately arrested.
Mr Hartshorn's solicitor Geoff Ellis applied for bail and chairman of the bench David Stenton said this would begranted with a number of conditions including a curfew and a ban on using any electronic communication device, except a landline telephone.