Maybe something like, Tá fuil ar an talamh mar gheall ar na políní -- There is blood on the ground because of the police. Or Dhoirt na políní fuil ar an talamh - The police spilled blood on the ground (literally; could also be 'pour')
Ulster is ar an talamh as well. The dialect generally lenites, but not for d/t. It's probably not mentioned explicitly in the GnaG page you linked because lenition doesn't occur here anyway (dentals rule). In another section, GnaG is explicit about it.