Answer:
If the book is Refugee by Alan Gratz answer below
Step-by-step explanation:
A Cuban policeman.
When Isabel's father, is worried that the police are coming after him, Isabel rallies her own family and another family, the Castillos, to take a boat to Miami and escape the oppression of Cuba. At the end of the book, Geraldo is saved by a Cuban police officer.
Hope this helps!
P.S I love this book! It tell three stories and beautifully intertwines them, it made me cry :)