In Kildare, 32 knives were seized in 2016, but that rose, sharply, to 72 last year.
Sweeping new laws to tackle knife crime are set to be introduced, including a ban on so-called 'zombie knives.'
The weapons are inspired by horror films, and are said to do more damage when being removed, than being inserted.
While a new offence of carrying a knife 'with intent' will be introduced, bringing with it a jail term of up to 10 years.
In Kildare, 32 knives were seized in 2016, but that rose, sharply, to 72 last year.
Minister for State for Justice James Browne has told the Sunday Independent he also wants to introduce a minimum age of 16 to purchase a knife.

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