However, every week a slightly larger number of illegal entrants are sent back home, with the figure around 16-19 people, Garbars added.
He said that the sole Latvian asylum seekers center is crowded.
Garbars said he was confident that most illegal immigrant groups are detected and arrested, but at the same time, it is believed that a couple of groups might have managed to enter Latvia unnoticed.
He also said that recently Latvian residents have started to collaborate with people smugglers in transportation of illegal immigrants, which makes the work of the border guards more difficult as local residents know the areas in which they live well.
This year more than 300 illegal immigrants have been held on the Latvian-Russian border so far, which is more than the total for the whole of 2014.