A 287(g) agreement gives certain federal immigration enforcement powers to local and state law police who normally would not have legal authority to make immigration arrests or do other federal รขโ‚ฌยฆ The 287(g) program is named for section 287(g) of the immigration and nationality act (ina). 1 section 287(g) became law as part of the illegal immigration reform and immigrant responsibility act of รขโ‚ฌยฆ