[12][11] Hayati started working as a legal counsel and deputy public prosecutor in the Attorney General's Chambers.

The Supreme People's Procuratorate and the Attorney General's Chambers of Brunei signed a joint statement after agreeing to further increase communication and collaboration between the two prosecutor offices.

They spoke about topics of mutual interest, including methods to improve the standard of legal services in Brunei Darussalam and potential avenues for collaboration.

[22] On 9 August 2018, His Majesty has approved the appointment of Dato Hairol Arni as Attorney General to take the place of Datin Hayati in accordance with the Sultan of Brunei's directive.

[23] Datin Hayati is the eldest daughter of aristocrat and politician, Pehin Orang Kaya Shahbandar Dato Seri Paduka Salleh.