Cannabis with a street value of more than £10,000 was intercepted by the police at Isle of Man Post Office’s headquarters.

Sinead O’Brien, of Sherwood Terrace, Douglas, admitted charges of production of the class B drug to the island and possession of the drug when she appeared before High Bailiff Jayne Hughes on Tuesday.

The 19-year-old will be sentenced at the Court of General Gaol Delivery.

The court heard police intercepted 507g of cannabis worth £10,154 that was addressed to O’Brien at Post Office headquarters on May 22.

At her home, police found cannabis which was in O’Brien’s possession.

No figure was given for this by prosecutor Hazel Caroon, however it was stated the amount did not exceed 5.1g.

Mrs Hughes said her sentencing powers were insufficient to deal with the production charge.

This was not challenged by defence advocate Louise Cooil.

O’Brien will appear before the Court of General Gaol Delivery for sentencing on July 3.

Bail continues in the sum of £500 with conditions that O’Brien must reside at her home address and not leave the island without the permission of the court.