A police officer who'll be in uniform riding atop her horse in tomorrow's Auckland Pride Parade won't be deterred by protestors.

Inspector Tracey Phillips said she's looking forward to marching alongside other police staff, to show the solidarity, and diversity in the force.

Protestors from the No Pride in Prisons group say Police and Corrections officers marching in uniform are ignoring the unethical treatment of transgender prisoners.

No Pride in Prisons spokesperson Bell Murphy said “the desire by police and corrections to conspicuously associate themselves with Pride and mainstream gay rights is a form of ‘pinkwashing’ in order to veil their unethical practices."

Ms Phillips said she's proud to be a part of the police.

"The police are involved because it's the right thing to do, we want people to feel safe coming to us and knowing that we'll be listening to people and treating them with empathy and in accordance with our other values that we've got."

Despite protests, corrections and police staff will both march in full garb for the second year in a row.

Inspector Phillips said there will be about 80 off duty police officers and staff marching, plus their families.

She said her sexuality, and many others' isn't black and white, and being allowed to march really solidifies the theme of diversity in the police force this year.

"Diversity is not just about all the gay people, it's about our creed, our colour, you know the whole spectrum so it's just celebrating the diversity of all of our people."