By October 2017,
TVNZ 1's
Marae programme had reported that Tam's company Rangatira Hard2Reach (H2R) was involved in resolving disputes between different gangs. In January 2018, Tam objected to the sale of counterfeit Mongrel Mob gang patches on the Chinese online retailer
AliExpress, urging buyers to return the items to the seller and to ask for their money back. Police also warned buyers about the risks of buying and wearing gang patches due to their association with gangs. In April 2021, the
Auckland District Law Society reported that Tam through his company Hard 2 Reach, had produced 31
cultural reports which provide courts with the backgrounds and context to criminal offenders' offending. According to independent justice advocate Ruth Money, cultural reports have led judges to give 10-15% sentencing discounts. In mid July 2021, ''
Hawke's Bay Today'' reported that the
Mongrel Mob-led Kahukura drug rehabilitation programme had received nearly NZ$3 million in funding from the
New Zealand Police's Proceeds of Crime Fund. Harry Tam, as director of the Hard 2 Reach (H2R), ran the Kahukura programme at
Tapairu Marae near
Waipawa alongside local Mongrel Mob leader Sonny Smith and his wife Mahinaarangi Smith.
Prime Minister Jacinda Ardern acknowledged that she had authorised funding to H2R's Kahukura
methamphetamine treatment programme over a four year period. Though the opposition
National Party had criticised the
Sixth Labour Government for funding the Mongrel Mob,
Newshub subsequently reported in early August 2024 that the previous
Fifth National Government had given NZ$30,000 to Hard to Reach for a family violence programme that it ran in conjunction with the
Salvation Army. In mid-July 2021, Tam attracted criticism from the
New Zealand Jewish Council spokesperson Juliet Moses for chanting the
Nazi victory salute "
Sieg Heil" in a video. Moses described the video as offensive to
New Zealand Jews particularly
Holocaust survivors while
Labour MP
Michael Wood described Tam's Sieg Heil chant as "appalling." On 9 October 2021, Tam threatened legal action against
New Zealand First leader
Winston Peters for alleging that a female sex worker connected to the Mongrel Mob had caused the
Northland Region's COVID-19 scare by travelling to
Whangārei on false pretenses. On 19 October, Peters publicly apologised to Tam for alleging that Tam helped a COVID-19 positive case breach the Auckland border. ==Political activism==