The Department of Justice received €145m in extra funding in this year's budget, up 5% on last year.
The Departments total spending for Budget 2022 is just over €3bn.
Eight hundred additional gardaí are to be recruited alongside 400 civilian staff to free up gardaí on frontline duty.
The Minister for Justice said this will put the department on track to meet its target of having 15,000 members of An Garda Síochána and 4,000 garda staff.
Heather Humphreys said that by the end of 2022 there will be 14,600 fully attested members and 600 in training.
Staff numbers will reach 3,800, which is the highest ever number of civilian staff.
The number of mountain-bike gardaí is to increase by 20% to 650.
An additional €3.3m to support the work of the Legal Aid Board, an additional €6.7m for the Youth Justice Strategy and €5.2m to combat domestic, sexual and gender-based violence
Forensic Science Ireland will receive an additional €4.1m, €20m will be used for Covid-related measures for frontline organizations and €3 million has been given for the forthcoming scheme to regularise undocumented migrants.
The Community Safety Innovation Fund, which will use the proceeds of crime to support investment in community safety projects, has been allocated €2m.
The Minister also said there was ongoing engagement with An Garda Síochána about the Policing and Security Bill which has been criticised by the association representing Garda Superintendents ahead of their annual conference today.
Ms Humphreys said An Garda Síochána needs to be modern and accountable with a robust oversight in place,
She said she knows that change is not easy but that it is the right thing to do.
The Minister also confirmed that she will hand back the role to Helen McEntee when she returns from maternity leave in just under three weeks time,